mirror of
https://github.com/pion/mediadevices.git
synced 2026-04-23 00:07:29 +08:00
David von Wrangel
69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
// MIT License
|
|
//
|
|
// Copyright (c) 2019-2020 Pion
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in all
|
|
// copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
// SOFTWARE.
|
|
|
|
#ifndef DEVICEOBSERVER_H
|
|
#define DEVICEOBSERVER_H
|
|
|
|
#include "AVFoundationBind.h"
|
|
|
|
typedef const char* STATUS;
|
|
|
|
typedef struct {
|
|
char uid[MAX_DEVICE_UID_CHARS + 1]; // +1 for null terminator
|
|
char name[MAX_DEVICE_NAME_CHARS + 1];
|
|
} DeviceInfo;
|
|
|
|
typedef enum {
|
|
DeviceEventConnected = 0,
|
|
DeviceEventDisconnected = 1
|
|
} DeviceEventType;
|
|
|
|
// Callback function type for device events
|
|
// userData: user-provided context pointer
|
|
// eventType: connected or disconnected
|
|
// device: device info
|
|
typedef void (*DeviceEventCallback)(void *userData, DeviceEventType eventType, DeviceInfo *device);
|
|
|
|
// Initialize the device observer with a callback
|
|
// Returns NULL on success, error string on failure
|
|
STATUS DeviceObserverInit(DeviceEventCallback callback, void *userData);
|
|
|
|
// Start observing device events (notifications will be delivered via the run loop)
|
|
STATUS DeviceObserverStart(void);
|
|
|
|
// Stop observing device events
|
|
STATUS DeviceObserverStop(void);
|
|
|
|
// Cleanup the device observer
|
|
STATUS DeviceObserverDestroy(void);
|
|
|
|
// Get current list of video devices
|
|
// devices: output array (must have space for MAX_DEVICES)
|
|
// count: output count of devices found
|
|
STATUS DeviceObserverGetDevices(DeviceInfo *devices, int *count);
|
|
|
|
// Run the run loop for a specified duration (in seconds)
|
|
// This allows the observer to receive notifications
|
|
STATUS DeviceObserverRunFor(double seconds);
|
|
|
|
#endif // DEVICEOBSERVER_H
|