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This commit is contained in:
Akkariin Meiko
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/* GStreamer
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* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
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* Copyright (C) 2020 Seungha Yang <seungha@centricular.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 Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:plugin-mediafoundation
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*
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* Microsoft MediaFoundation plugin.
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*
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* This plugin consists of various hardware/software video encoders
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* software audio encoders, and video capture (from webcam) elements.
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*
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* GstMediaFoundation plugin supports H.264/AVC, H.265/HEVC, VP9, codecs for
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* hardware-accelerate encoding.
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*
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* However, depending on the hardware it runs on, some elements might not be
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* registered in case that underlying hardware doesn't support the feature.
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*
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* Moreover, depending on hardware vendor's MediaFoundation implementation,
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* secendary GPU may not be usable. In that case, user could use vendor
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* specific plugins, Intel Media SDK and NVCODEC plugins for example.
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*
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* For a system with multiple MediaFoundation compatible hardwares (i.e., GPU),
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* there can be multiple plugin features having the same role.
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* Also, there would be additional software video encoder element the system
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* meets requirement.
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*
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* The naming rule for the non-primary encoder is `mf{codec}device{index}enc`
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* where `index` is an arbitrary index number of hardware starting from 1.
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*
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* To get a list of all available elements, user can run
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* ```sh
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* gst-inspect-1.0.exe mediafoundation
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* ```
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*
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* Since: 1.18
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstmfconfig.h"
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#include <winapifamily.h>
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#include <wrl.h>
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include "gstmfvideosrc.h"
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#include "gstmfdevice.h"
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#include "gstmfutils.h"
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#include "gstmfh264enc.h"
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#include "gstmfh265enc.h"
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#include "gstmfvp9enc.h"
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#include "gstmfaacenc.h"
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#include "gstmfmp3enc.h"
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#include "gstmfaacdec.h"
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#include "gstmfmp3dec.h"
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#if GST_MF_HAVE_D3D11
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#include <gst/d3d11/gstd3d11.h>
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#include <d3d11_4.h>
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#include <dxgi1_6.h>
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#include <gstmfplatloader.h>
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#endif
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GST_DEBUG_CATEGORY (gst_mf_debug);
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GST_DEBUG_CATEGORY (gst_mf_utils_debug);
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GST_DEBUG_CATEGORY (gst_mf_source_object_debug);
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GST_DEBUG_CATEGORY (gst_mf_transform_debug);
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GST_DEBUG_CATEGORY (gst_mf_video_buffer_debug);
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GST_DEBUG_CATEGORY (gst_mf_video_encoder_debug);
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#define GST_CAT_DEFAULT gst_mf_debug
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/* *INDENT-OFF* */
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using namespace Microsoft::WRL;
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/* *INDENT-ON* */
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static void
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plugin_deinit (gpointer data)
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{
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MFShutdown ();
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}
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#if GST_MF_HAVE_D3D11
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static GList *
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get_d3d11_devices (void)
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{
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GList *ret = nullptr;
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guint i;
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HRESULT hr;
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ComPtr < IMFVideoSampleAllocatorEx > allocator;
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/* Check whether we can use IMFVideoSampleAllocatorEx interface */
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hr = GstMFCreateVideoSampleAllocatorEx (IID_IMFVideoSampleAllocatorEx,
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&allocator);
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if (!gst_mf_result (hr)) {
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GST_DEBUG ("IMFVideoSampleAllocatorEx interface is unavailable");
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return nullptr;
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}
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/* AMD seems supporting up to 12 cards, and 8 for NVIDIA */
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for (i = 0; i < 12; i++) {
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GstD3D11Device *device;
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gboolean is_hardware = FALSE;
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GstD3D11Format d3d11_format;
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ID3D11Device *device_handle;
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D3D11_FEATURE_DATA_D3D11_OPTIONS4 options = { 0, };
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UINT supported = 0;
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device = gst_d3d11_device_new (i, D3D11_CREATE_DEVICE_VIDEO_SUPPORT);
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if (!device)
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break;
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g_object_get (device, "hardware", &is_hardware, nullptr);
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if (!is_hardware) {
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GST_DEBUG_OBJECT (device, "Given d3d11 device is not for hardware");
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gst_object_unref (device);
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continue;
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}
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/* device can support NV12 format? */
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if (!gst_d3d11_device_get_format (device,
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GST_VIDEO_FORMAT_NV12, &d3d11_format) ||
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d3d11_format.dxgi_format != DXGI_FORMAT_NV12) {
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GST_DEBUG_OBJECT (device,
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"Given d3d11 device cannot support NV12 format");
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gst_object_unref (device);
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continue;
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}
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/* device can support ExtendedNV12SharedTextureSupported?
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*
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* NOTE: we will make use of per encoder object d3d11 device without
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* sharing it in a pipeline because MF needs D3D11_CREATE_DEVICE_VIDEO_SUPPORT
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* but the flag doesn't used for the other our use cases.
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* So we need texture sharing feature so that we can copy d3d11 texture into
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* MF specific texture pool without download texture */
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device_handle = gst_d3d11_device_get_device_handle (device);
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hr = device_handle->CheckFeatureSupport (D3D11_FEATURE_D3D11_OPTIONS4,
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&options, sizeof (options));
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if (!gst_d3d11_result (hr, device) ||
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!options.ExtendedNV12SharedTextureSupported) {
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GST_DEBUG_OBJECT (device,
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"Given d3d11 device cannot support NV12 format for shared texture");
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gst_object_unref (device);
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continue;
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}
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/* can we bind NV12 texture for encoder? */
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hr = device_handle->CheckFormatSupport (DXGI_FORMAT_NV12, &supported);
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if (!gst_d3d11_result (hr, device)) {
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GST_DEBUG_OBJECT (device, "Couldn't query format support");
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gst_object_unref (device);
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continue;
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} else if ((supported & D3D11_FORMAT_SUPPORT_VIDEO_ENCODER) == 0) {
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GST_DEBUG_OBJECT (device, "We cannot bind NV12 format for encoding");
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gst_object_unref (device);
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continue;
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}
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ret = g_list_append (ret, device);
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}
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return ret;
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}
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#endif
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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HRESULT hr;
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guint rank = GST_RANK_SECONDARY;
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GList *device_list = nullptr;
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GST_DEBUG_CATEGORY_INIT (gst_mf_debug, "mf", 0, "media foundation");
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GST_DEBUG_CATEGORY_INIT (gst_mf_utils_debug,
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"mfutils", 0, "media foundation utility functions");
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GST_DEBUG_CATEGORY_INIT (gst_mf_source_object_debug,
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"mfsourceobject", 0, "mfsourceobject");
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GST_DEBUG_CATEGORY_INIT (gst_mf_transform_debug,
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"mftransform", 0, "mftransform");
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GST_DEBUG_CATEGORY_INIT (gst_mf_video_buffer_debug,
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"mfvideobuffer", 0, "mfvideobuffer");
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GST_DEBUG_CATEGORY_INIT (gst_mf_video_encoder_debug,
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"mfvideoencoder", 0, "mfvideoencoder");
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hr = MFStartup (MF_VERSION, MFSTARTUP_NOSOCKET);
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if (!gst_mf_result (hr)) {
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GST_WARNING ("MFStartup failure, hr: 0x%x", hr);
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return TRUE;
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}
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/* mfvideosrc should be primary rank for UWP */
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#if (GST_MF_WINAPI_APP && !GST_MF_WINAPI_DESKTOP)
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rank = GST_RANK_PRIMARY + 1;
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#endif
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/* FIXME: In order to create MFT for a specific GPU, MFTEnum2() API is
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* required API but it's desktop only.
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* So, resulting MFT and D3D11 might not be compatible in case of multi-GPU
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* environment on UWP. */
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#if GST_MF_HAVE_D3D11
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if (gst_mf_plat_load_library ())
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device_list = get_d3d11_devices ();
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#endif
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gst_element_register (plugin, "mfvideosrc", rank, GST_TYPE_MF_VIDEO_SRC);
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gst_device_provider_register (plugin, "mfdeviceprovider",
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rank, GST_TYPE_MF_DEVICE_PROVIDER);
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gst_mf_h264_enc_plugin_init (plugin, GST_RANK_SECONDARY, device_list);
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gst_mf_h265_enc_plugin_init (plugin, GST_RANK_SECONDARY, device_list);
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gst_mf_vp9_enc_plugin_init (plugin, GST_RANK_SECONDARY, device_list);
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if (device_list)
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g_list_free_full (device_list, gst_object_unref);
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gst_mf_aac_enc_plugin_init (plugin, GST_RANK_SECONDARY);
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gst_mf_mp3_enc_plugin_init (plugin, GST_RANK_SECONDARY);
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gst_mf_aac_dec_plugin_init (plugin, GST_RANK_SECONDARY);
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gst_mf_mp3_dec_plugin_init (plugin, GST_RANK_SECONDARY);
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/* So that call MFShutdown() when this plugin is no more used
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* (i.e., gst_deinit). Otherwise valgrind-like tools would complain
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* about un-released media foundation resources.
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*
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* NOTE: MFStartup and MFShutdown can be called multiple times, but the number
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* of each MFStartup and MFShutdown call should be identical. This rule is
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* simliar to that of CoInitialize/CoUninitialize pair */
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g_object_set_data_full (G_OBJECT (plugin),
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"plugin-mediafoundation-shutdown", (gpointer) "shutdown-data",
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(GDestroyNotify) plugin_deinit);
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return TRUE;
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}
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GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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mediafoundation,
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"Microsoft Media Foundation plugin",
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plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
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