gstreamer/gstajadeviceprovider.cpp
2021-08-27 14:42:13 +03:00

170 lines
6.4 KiB
C++

/*
* Copyright (C) 2019 Mathieu Duponchelle <mathieu@centricular.com>
* Copyright (C) 2019,2021 Sebastian Dröge <sebastian@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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstajacommon.h"
#include "gstajadeviceprovider.h"
static GstDevice *gst_aja_device_new(NTV2DeviceInfo &device, gboolean video);
G_DEFINE_TYPE(GstAjaDeviceProvider, gst_aja_device_provider,
GST_TYPE_DEVICE_PROVIDER);
static void gst_aja_device_provider_init(GstAjaDeviceProvider *self) {}
static GList *gst_aja_device_provider_probe(GstDeviceProvider *provider) {
GList *ret = NULL;
CNTV2DeviceScanner scanner;
NTV2DeviceInfoList devices = scanner.GetDeviceInfoList();
for (NTV2DeviceInfoList::iterator it = devices.begin(); it != devices.end();
it++) {
// Skip non-input / non-output devices
if (it->numVidInputs == 0 && it->numVidOutputs == 0) continue;
if (it->numVidInputs > 0)
ret = g_list_prepend(ret, gst_aja_device_new(*it, TRUE));
if (it->numVidOutputs > 0)
ret = g_list_prepend(ret, gst_aja_device_new(*it, FALSE));
}
ret = g_list_reverse(ret);
return ret;
}
static void gst_aja_device_provider_class_init(
GstAjaDeviceProviderClass *klass) {
GstDeviceProviderClass *dm_class = GST_DEVICE_PROVIDER_CLASS(klass);
dm_class->probe = GST_DEBUG_FUNCPTR(gst_aja_device_provider_probe);
gst_device_provider_class_set_static_metadata(
dm_class, "AJA Device Provider", "Source/Audio/Video",
"List and provides AJA capture devices",
"Sebastian Dröge <sebastian@centricular.com>");
}
G_DEFINE_TYPE(GstAjaDevice, gst_aja_device, GST_TYPE_DEVICE);
static void gst_aja_device_init(GstAjaDevice *self) {}
static GstElement *gst_aja_device_create_element(GstDevice *device,
const gchar *name) {
GstAjaDevice *self = GST_AJA_DEVICE(device);
GstElement *ret = NULL;
if (self->is_capture) {
ret = gst_element_factory_make("ajasrc", name);
} else {
ret = gst_element_factory_make("ajasink", name);
}
if (ret) {
gchar *device_identifier = g_strdup_printf("%u", self->device_index);
g_object_set(ret, "device-identifier", device_identifier, NULL);
g_free(device_identifier);
}
return ret;
}
static void gst_aja_device_class_init(GstAjaDeviceClass *klass) {
GstDeviceClass *gst_device_class = GST_DEVICE_CLASS(klass);
gst_device_class->create_element =
GST_DEBUG_FUNCPTR(gst_aja_device_create_element);
}
static GstDevice *gst_aja_device_new(NTV2DeviceInfo &device,
gboolean is_capture) {
GstDevice *ret;
gchar *display_name;
const gchar *device_class;
GstCaps *caps = NULL;
GstStructure *properties;
device_class = is_capture ? "Audio/Video/Source" : "Audio/Video/Sink";
display_name = g_strdup_printf("AJA %s (%s)", device.deviceIdentifier.c_str(),
is_capture ? "Source" : "Sink");
caps = gst_ntv2_supported_caps(device.deviceID);
properties = gst_structure_new_empty("properties");
gst_structure_set(
properties, "device-id", G_TYPE_UINT, device.deviceID, "device-index",
G_TYPE_UINT, device.deviceIndex, "pci-slot", G_TYPE_UINT, device.pciSlot,
"serial-number", G_TYPE_UINT64, device.deviceSerialNumber,
"device-identifier", G_TYPE_STRING, device.deviceIdentifier.c_str(),
"num-audio-streams", G_TYPE_UINT, device.numAudioStreams,
"dual-link-support", G_TYPE_BOOLEAN, device.dualLinkSupport,
"sdi-3g-support", G_TYPE_BOOLEAN, device.sdi3GSupport, "sdi-12g-support",
G_TYPE_BOOLEAN, device.sdi12GSupport, "ip-support", G_TYPE_BOOLEAN,
device.ipSupport, "bi-directional-sdi", G_TYPE_BOOLEAN,
device.biDirectionalSDI, "ltc-in-support", G_TYPE_BOOLEAN,
device.ltcInSupport, "ltc-in-on-ref-port", G_TYPE_BOOLEAN,
device.ltcInOnRefPort, "2k-support", G_TYPE_BOOLEAN, device.has2KSupport,
"4k-support", G_TYPE_BOOLEAN, device.has4KSupport, "8k-support",
G_TYPE_BOOLEAN, device.has8KSupport, "multiformat-support",
G_TYPE_BOOLEAN, device.multiFormat, NULL);
if (is_capture) {
gst_structure_set(
properties, "num-vid-inputs", G_TYPE_UINT, device.numVidInputs,
"num-anlg-vid-inputs", G_TYPE_UINT, device.numAnlgVidInputs,
"num-hdmi-vid-inputs", G_TYPE_UINT, device.numHDMIVidInputs,
"num-analog-audio-input-channels", G_TYPE_UINT,
device.numAnalogAudioInputChannels, "num-aes-audio-input-channels",
G_TYPE_UINT, device.numAESAudioInputChannels,
"num-embedded-audio-input-channels", G_TYPE_UINT,
device.numEmbeddedAudioInputChannels, "num-hdmi-audio-input-channels",
G_TYPE_UINT, device.numHDMIAudioInputChannels, NULL);
} else {
gst_structure_set(
properties, "num-vid-outputs", G_TYPE_UINT, device.numVidOutputs,
"num-anlg-vid-outputs", G_TYPE_UINT, device.numAnlgVidOutputs,
"num-hdmi-vid-outputs", G_TYPE_UINT, device.numHDMIVidOutputs,
"num-analog-audio-output-channels", G_TYPE_UINT,
device.numAnalogAudioOutputChannels, "num-aes-audio-output-channels",
G_TYPE_UINT, device.numAESAudioOutputChannels,
"num-embedded-audio-output-channels", G_TYPE_UINT,
device.numEmbeddedAudioOutputChannels, "num-hdmi-audio-output-channels",
G_TYPE_UINT, device.numHDMIAudioOutputChannels, NULL);
}
ret = GST_DEVICE(g_object_new(GST_TYPE_AJA_DEVICE, "display-name",
display_name, "device-class", device_class,
"caps", caps, "properties", properties, NULL));
g_free(display_name);
gst_caps_unref(caps);
gst_structure_free(properties);
GST_AJA_DEVICE(ret)->is_capture = is_capture;
GST_AJA_DEVICE(ret)->device_index = device.deviceIndex;
return ret;
}