mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-05 07:56:35 +00:00
274 lines
7.6 KiB
C++
274 lines
7.6 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.
|
||
|
*/
|
||
|
|
||
|
#ifdef HAVE_CONFIG_H
|
||
|
#include "config.h"
|
||
|
#endif
|
||
|
|
||
|
#include "gstasiodeviceprovider.h"
|
||
|
#include "gstasioutils.h"
|
||
|
#include "gstasioobject.h"
|
||
|
#include <atlconv.h>
|
||
|
|
||
|
enum
|
||
|
{
|
||
|
PROP_0,
|
||
|
PROP_DEVICE_CLSID,
|
||
|
};
|
||
|
|
||
|
struct _GstAsioDevice
|
||
|
{
|
||
|
GstDevice parent;
|
||
|
|
||
|
gchar *device_clsid;
|
||
|
const gchar *factory_name;
|
||
|
};
|
||
|
|
||
|
G_DEFINE_TYPE (GstAsioDevice, gst_asio_device, GST_TYPE_DEVICE);
|
||
|
|
||
|
static void gst_asio_device_get_property (GObject * object,
|
||
|
guint prop_id, GValue * value, GParamSpec * pspec);
|
||
|
static void gst_asio_device_set_property (GObject * object,
|
||
|
guint prop_id, const GValue * value, GParamSpec * pspec);
|
||
|
static void gst_asio_device_finalize (GObject * object);
|
||
|
static GstElement *gst_asio_device_create_element (GstDevice * device,
|
||
|
const gchar * name);
|
||
|
|
||
|
static void
|
||
|
gst_asio_device_class_init (GstAsioDeviceClass * klass)
|
||
|
{
|
||
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
||
|
GstDeviceClass *dev_class = GST_DEVICE_CLASS (klass);
|
||
|
|
||
|
dev_class->create_element = gst_asio_device_create_element;
|
||
|
|
||
|
gobject_class->get_property = gst_asio_device_get_property;
|
||
|
gobject_class->set_property = gst_asio_device_set_property;
|
||
|
gobject_class->finalize = gst_asio_device_finalize;
|
||
|
|
||
|
g_object_class_install_property (gobject_class, PROP_DEVICE_CLSID,
|
||
|
g_param_spec_string ("device-clsid", "Device CLSID",
|
||
|
"ASIO device CLSID as string including curly brackets", NULL,
|
||
|
(GParamFlags) (G_PARAM_READWRITE |
|
||
|
G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS)));
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
gst_asio_device_init (GstAsioDevice * self)
|
||
|
{
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
gst_asio_device_finalize (GObject * object)
|
||
|
{
|
||
|
GstAsioDevice *self = GST_ASIO_DEVICE (object);
|
||
|
|
||
|
g_free (self->device_clsid);
|
||
|
|
||
|
G_OBJECT_CLASS (gst_asio_device_parent_class)->finalize (object);
|
||
|
}
|
||
|
|
||
|
static GstElement *
|
||
|
gst_asio_device_create_element (GstDevice * device, const gchar * name)
|
||
|
{
|
||
|
GstAsioDevice *self = GST_ASIO_DEVICE (device);
|
||
|
GstElement *elem;
|
||
|
|
||
|
elem = gst_element_factory_make (self->factory_name, name);
|
||
|
|
||
|
g_object_set (elem, "device-clsid", self->device_clsid, NULL);
|
||
|
|
||
|
return elem;
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
gst_asio_device_get_property (GObject * object, guint prop_id,
|
||
|
GValue * value, GParamSpec * pspec)
|
||
|
{
|
||
|
GstAsioDevice *self = GST_ASIO_DEVICE (object);
|
||
|
|
||
|
switch (prop_id) {
|
||
|
case PROP_DEVICE_CLSID:
|
||
|
g_value_set_string (value, self->device_clsid);
|
||
|
break;
|
||
|
default:
|
||
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
gst_asio_device_set_property (GObject * object, guint prop_id,
|
||
|
const GValue * value, GParamSpec * pspec)
|
||
|
{
|
||
|
GstAsioDevice *self = GST_ASIO_DEVICE (object);
|
||
|
|
||
|
switch (prop_id) {
|
||
|
case PROP_DEVICE_CLSID:
|
||
|
g_free (self->device_clsid);
|
||
|
self->device_clsid = g_value_dup_string (value);
|
||
|
break;
|
||
|
default:
|
||
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
struct _GstAsioDeviceProvider
|
||
|
{
|
||
|
GstDeviceProvider parent;
|
||
|
};
|
||
|
|
||
|
G_DEFINE_TYPE (GstAsioDeviceProvider, gst_asio_device_provider,
|
||
|
GST_TYPE_DEVICE_PROVIDER);
|
||
|
|
||
|
static GList *gst_asio_device_provider_probe (GstDeviceProvider * provider);
|
||
|
|
||
|
static void
|
||
|
gst_asio_device_provider_class_init (GstAsioDeviceProviderClass * klass)
|
||
|
{
|
||
|
GstDeviceProviderClass *provider_class = GST_DEVICE_PROVIDER_CLASS (klass);
|
||
|
|
||
|
provider_class->probe = GST_DEBUG_FUNCPTR (gst_asio_device_provider_probe);
|
||
|
|
||
|
gst_device_provider_class_set_static_metadata (provider_class,
|
||
|
"ASIO Device Provider",
|
||
|
"Source/Sink/Audio", "List ASIO source and sink devices",
|
||
|
"Seungha Yang <seungha@centricular.com>");
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
gst_asio_device_provider_init (GstAsioDeviceProvider * provider)
|
||
|
{
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
gst_asio_device_provider_probe_internal (GstAsioDeviceProvider * self,
|
||
|
gboolean is_src, GList * asio_device_list, GList ** devices)
|
||
|
{
|
||
|
const gchar *device_class, *factory_name;
|
||
|
GList *iter;
|
||
|
|
||
|
USES_CONVERSION;
|
||
|
|
||
|
if (is_src) {
|
||
|
device_class = "Audio/Source";
|
||
|
factory_name = "asiosrc";
|
||
|
} else {
|
||
|
device_class = "Audio/Sink";
|
||
|
factory_name = "asiosink";
|
||
|
}
|
||
|
|
||
|
for (iter = asio_device_list; iter; iter = g_list_next (iter)) {
|
||
|
GstDevice *device;
|
||
|
GstAsioDeviceInfo *info = (GstAsioDeviceInfo *) iter->data;
|
||
|
GstAsioObject *obj;
|
||
|
GstCaps *caps = nullptr;
|
||
|
GstStructure *props = nullptr;
|
||
|
long max_in_ch = 0;
|
||
|
long max_out_ch = 0;
|
||
|
HRESULT hr;
|
||
|
LPOLESTR clsid_str = nullptr;
|
||
|
glong min_buf_size = 0;
|
||
|
glong max_buf_size = 0;
|
||
|
glong preferred_buf_size = 0;
|
||
|
glong buf_size_granularity = 0;
|
||
|
|
||
|
obj = gst_asio_object_new (info, FALSE);
|
||
|
if (!obj)
|
||
|
continue;
|
||
|
|
||
|
if (!gst_asio_object_get_max_num_channels (obj, &max_in_ch, &max_out_ch))
|
||
|
goto done;
|
||
|
|
||
|
if (is_src && max_in_ch <= 0)
|
||
|
goto done;
|
||
|
else if (!is_src && max_out_ch <= 0)
|
||
|
goto done;
|
||
|
|
||
|
if (is_src) {
|
||
|
caps = gst_asio_object_get_caps (obj,
|
||
|
GST_ASIO_DEVICE_CLASS_CAPTURE, 1, max_in_ch);
|
||
|
} else {
|
||
|
caps = gst_asio_object_get_caps (obj,
|
||
|
GST_ASIO_DEVICE_CLASS_RENDER, 1, max_out_ch);
|
||
|
}
|
||
|
if (!caps)
|
||
|
goto done;
|
||
|
|
||
|
hr = StringFromIID (info->clsid, &clsid_str);
|
||
|
if (FAILED (hr))
|
||
|
goto done;
|
||
|
|
||
|
if (!gst_asio_object_get_buffer_size (obj, &min_buf_size, &max_buf_size,
|
||
|
&preferred_buf_size, &buf_size_granularity))
|
||
|
goto done;
|
||
|
|
||
|
props = gst_structure_new ("asio-proplist",
|
||
|
"device.api", G_TYPE_STRING, "asio",
|
||
|
"device.clsid", G_TYPE_STRING, OLE2A (clsid_str),
|
||
|
"asio.device.description", G_TYPE_STRING, info->driver_desc,
|
||
|
"asio.device.min-buf-size", G_TYPE_LONG, min_buf_size,
|
||
|
"asio.device.max-buf-size", G_TYPE_LONG, max_buf_size,
|
||
|
"asio.device.preferred-buf-size", G_TYPE_LONG, preferred_buf_size,
|
||
|
"asio.device.buf-size-granularity", G_TYPE_LONG, buf_size_granularity,
|
||
|
nullptr);
|
||
|
|
||
|
device = (GstDevice *) g_object_new (GST_TYPE_ASIO_DEVICE,
|
||
|
"device-clsid", OLE2A (clsid_str),
|
||
|
"display-name", info->driver_desc, "caps", caps,
|
||
|
"device-class", device_class, "properties", props, nullptr);
|
||
|
GST_ASIO_DEVICE (device)->factory_name = factory_name;
|
||
|
|
||
|
*devices = g_list_append (*devices, device);
|
||
|
|
||
|
done:
|
||
|
gst_clear_caps (&caps);
|
||
|
gst_clear_object (&obj);
|
||
|
if (props)
|
||
|
gst_structure_free (props);
|
||
|
}
|
||
|
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
static GList *
|
||
|
gst_asio_device_provider_probe (GstDeviceProvider * provider)
|
||
|
{
|
||
|
GstAsioDeviceProvider *self = GST_ASIO_DEVICE_PROVIDER (provider);
|
||
|
GList *devices = nullptr;
|
||
|
guint num_device;
|
||
|
GList *asio_device_list = nullptr;
|
||
|
|
||
|
num_device = gst_asio_enum (&asio_device_list);
|
||
|
|
||
|
if (num_device == 0)
|
||
|
return nullptr;
|
||
|
|
||
|
gst_asio_device_provider_probe_internal (self,
|
||
|
TRUE, asio_device_list, &devices);
|
||
|
gst_asio_device_provider_probe_internal (self,
|
||
|
FALSE, asio_device_list, &devices);
|
||
|
|
||
|
g_list_free_full (asio_device_list,
|
||
|
(GDestroyNotify) gst_asio_device_info_free);
|
||
|
|
||
|
return devices;
|
||
|
}
|