mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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505f48f237
The order of the devices iterator from the SDK is undefined and can randomly change. Keep the device-number property for backwards compatibility and simplicity but prefer the persistent-id property and also use it for the device provider implementation. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3078>
95 lines
3 KiB
C++
95 lines
3 KiB
C++
/*
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* Copyright (C) 2019 Mathieu Duponchelle <mathieu@centricular.com>
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* Copyright (C) 2019 Sebastian Dröge <sebastian@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 Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, 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 "gstdecklinkdeviceprovider.h"
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#include "gstdecklink.h"
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#define DEFAULT_PERSISTENT_ID (-1)
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G_DEFINE_TYPE (GstDecklinkDeviceProvider, gst_decklink_device_provider,
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GST_TYPE_DEVICE_PROVIDER);
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GST_DEVICE_PROVIDER_REGISTER_DEFINE (decklinkdeviceprovider, "decklinkdeviceprovider",
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GST_RANK_PRIMARY, GST_TYPE_DECKLINK_DEVICE_PROVIDER);
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static void
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gst_decklink_device_provider_init (GstDecklinkDeviceProvider * self)
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{
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}
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static GList *
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gst_decklink_device_provider_probe (GstDeviceProvider * provider)
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{
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return gst_decklink_get_devices ();
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}
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static void
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gst_decklink_device_provider_class_init (GstDecklinkDeviceProviderClass * klass)
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{
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GstDeviceProviderClass *dm_class = GST_DEVICE_PROVIDER_CLASS (klass);
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dm_class->probe = GST_DEBUG_FUNCPTR (gst_decklink_device_provider_probe);
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gst_device_provider_class_set_static_metadata (dm_class,
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"Decklink Device Provider", "Hardware/Source/Sink/Audio/Video",
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"Lists and provides Decklink devices",
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"Sebastian Dröge <sebastian@centricular.com>");
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}
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G_DEFINE_TYPE (GstDecklinkDevice, gst_decklink_device, GST_TYPE_DEVICE);
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static void
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gst_decklink_device_init (GstDecklinkDevice * self)
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{
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}
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static GstElement *
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gst_decklink_device_create_element (GstDevice * device, const gchar * name)
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{
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GstDecklinkDevice *self = GST_DECKLINK_DEVICE (device);
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GstElement *ret = NULL;
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if (self->video && self->capture) {
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ret = gst_element_factory_make ("decklinkvideosrc", name);
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} else if (!self->video && self->capture) {
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ret = gst_element_factory_make ("decklinkaudiosrc", name);
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} else if (self->video && !self->capture) {
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ret = gst_element_factory_make ("decklinkvideosink", name);
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} else {
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ret = gst_element_factory_make ("decklinkaudiosink", name);
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}
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if (ret) {
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g_object_set (ret, "persistent-id", self->persistent_id, NULL);
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}
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return ret;
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}
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static void
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gst_decklink_device_class_init (GstDecklinkDeviceClass * klass)
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{
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GstDeviceClass *gst_device_class = GST_DEVICE_CLASS (klass);
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gst_device_class->create_element =
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GST_DEBUG_FUNCPTR (gst_decklink_device_create_element);
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}
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