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MFStartup and MFShutdown should be paired as documented in https://docs.microsoft.com/en-us/windows/win32/api/mfapi/nf-mfapi-mfstartup#remarks Otherwise valgrind-like tools would report false positive memory leak. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1512>
112 lines
3.5 KiB
C
112 lines
3.5 KiB
C
/* 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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#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 <gst/gst.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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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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#define GST_CAT_DEFAULT gst_mf_debug
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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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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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HRESULT hr;
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GstRank rank = GST_RANK_SECONDARY;
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/**
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* plugin-mediafoundation:
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*
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* Since: 1.18
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*/
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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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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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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);
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gst_mf_h265_enc_plugin_init (plugin, GST_RANK_SECONDARY);
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gst_mf_vp9_enc_plugin_init (plugin, GST_RANK_SECONDARY);
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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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/* 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", "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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