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/*
* Copyright (c) 2022 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "modules/video_capture/linux/device_info_pipewire.h"
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <vector>
#include "modules/video_capture/video_capture.h"
#include "modules/video_capture/video_capture_defines.h"
#include "modules/video_capture/video_capture_impl.h"
#include "modules/video_capture/video_capture_options.h"
#include "rtc_base/logging.h"
namespace webrtc {
namespace videocapturemodule {
DeviceInfoPipeWire::DeviceInfoPipeWire(VideoCaptureOptions* options)
: DeviceInfoImpl(), pipewire_session_(options->pipewire_session()) {}
int32_t DeviceInfoPipeWire::Init() {
return 0;
}
DeviceInfoPipeWire::~DeviceInfoPipeWire() = default;
uint32_t DeviceInfoPipeWire::NumberOfDevices() {
return pipewire_session_->nodes().size();
}
int32_t DeviceInfoPipeWire::GetDeviceName(uint32_t deviceNumber,
char* deviceNameUTF8,
uint32_t deviceNameLength,
char* deviceUniqueIdUTF8,
uint32_t deviceUniqueIdUTF8Length,
char* productUniqueIdUTF8,
uint32_t productUniqueIdUTF8Length,
pid_t* pid,
bool* deviceIsPlaceholder) {
if (deviceNumber >= NumberOfDevices())
return -1;
const PipeWireNode& node = pipewire_session_->nodes().at(deviceNumber);
if (deviceNameLength <= node.display_name().length()) {
RTC_LOG(LS_INFO) << "deviceNameUTF8 buffer passed is too small";
return -1;
}
if (deviceUniqueIdUTF8Length <= node.unique_id().length()) {
RTC_LOG(LS_INFO) << "deviceUniqueIdUTF8 buffer passed is too small";
return -1;
}
if (productUniqueIdUTF8 &&
productUniqueIdUTF8Length <= node.model_id().length()) {
RTC_LOG(LS_INFO) << "productUniqueIdUTF8 buffer passed is too small";
return -1;
}
memset(deviceNameUTF8, 0, deviceNameLength);
node.display_name().copy(deviceNameUTF8, deviceNameLength);
memset(deviceUniqueIdUTF8, 0, deviceUniqueIdUTF8Length);
node.unique_id().copy(deviceUniqueIdUTF8, deviceUniqueIdUTF8Length);
if (productUniqueIdUTF8) {
memset(productUniqueIdUTF8, 0, productUniqueIdUTF8Length);
node.model_id().copy(productUniqueIdUTF8, productUniqueIdUTF8Length);
}
return 0;
}
int32_t DeviceInfoPipeWire::CreateCapabilityMap(
const char* deviceUniqueIdUTF8) {
for (auto& node : pipewire_session_->nodes()) {
if (node.unique_id().compare(deviceUniqueIdUTF8) != 0)
continue;
_captureCapabilities = node.capabilities();
_lastUsedDeviceNameLength = node.unique_id().length();
_lastUsedDeviceName = static_cast<char*>(
realloc(_lastUsedDeviceName, _lastUsedDeviceNameLength + 1));
memcpy(_lastUsedDeviceName, deviceUniqueIdUTF8,
_lastUsedDeviceNameLength + 1);
return _captureCapabilities.size();
}
return -1;
}
int32_t DeviceInfoPipeWire::DisplayCaptureSettingsDialogBox(
const char* /*deviceUniqueIdUTF8*/,
const char* /*dialogTitleUTF8*/,
void* /*parentWindow*/,
uint32_t /*positionX*/,
uint32_t /*positionY*/) {
return -1;
}
} // namespace videocapturemodule
} // namespace webrtc
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