gstreamer/sys/asio/gstasioobject.h

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/* 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 aglong with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_ASIO_OBJECT_H__
#define __GST_ASIO_OBJECT_H__
#include <gst/gst.h>
#include <windows.h>
#include "gstasioutils.h"
G_BEGIN_DECLS
#define GST_TYPE_ASIO_OBJECT (gst_asio_object_get_type())
G_DECLARE_FINAL_TYPE (GstAsioObject, gst_asio_object,
GST, ASIO_OBJECT, GstObject);
typedef struct {
gboolean (*buffer_switch) (GstAsioObject * obj,
glong index,
ASIOBufferInfo * infos,
guint num_infos,
ASIOChannelInfo * input_channel_infos,
ASIOChannelInfo * output_channel_infos,
ASIOSampleRate sample_rate,
glong buffer_size,
ASIOTime * time_info,
gpointer user_data);
gpointer user_data;
} GstAsioObjectCallbacks;
typedef enum
{
GST_ASIO_DEVICE_CLASS_CAPTURE,
GST_ASIO_DEVICE_CLASS_RENDER,
GST_ASIO_DEVICE_CLASS_LOOPBACK_CAPTURE,
} GstAsioDeviceClassType;
GstAsioObject * gst_asio_object_new (const GstAsioDeviceInfo * info,
gboolean occupy_all_channels);
GstCaps * gst_asio_object_get_caps (GstAsioObject * obj,
GstAsioDeviceClassType type,
guint num_min_channels,
guint num_max_channels);
gboolean gst_asio_object_create_buffers (GstAsioObject * obj,
GstAsioDeviceClassType type,
guint * channel_indices,
guint num_channels,
guint * buffer_size);
gboolean gst_asio_object_start (GstAsioObject * obj);
gboolean gst_asio_object_install_callback (GstAsioObject * obj,
GstAsioDeviceClassType type,
GstAsioObjectCallbacks * callbacks,
guint64 * callback_id);
void gst_asio_object_uninstall_callback (GstAsioObject * obj,
guint64 callback_id);
gboolean gst_asio_object_get_max_num_channels (GstAsioObject * obj,
glong * num_input_ch,
glong * num_output_ch);
gboolean gst_asio_object_get_buffer_size (GstAsioObject * obj,
glong * min_size,
glong * max_size,
glong * preferred_size,
glong * granularity);
gboolean gst_asio_object_get_latencies (GstAsioObject * obj,
glong * input_latency,
glong * output_latency);
gboolean gst_asio_object_can_sample_rate (GstAsioObject * obj,
ASIOSampleRate sample_rate);
gboolean gst_asio_object_get_sample_rate (GstAsioObject * obj,
ASIOSampleRate * sample_rate);
gboolean gst_asio_object_set_sample_rate (GstAsioObject * obj,
ASIOSampleRate sample_rate);
G_END_DECLS
#endif /* __GST_ASIO_OBJECT_H__ */