blob: 1d7ac5baf1e6cc0ed0e6cacbc8cf71b02e6d7438 [file] [log] [blame]
/*
* libjingle
* Copyright 2004 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "talk/media/devices/devicemanager.h"
#include "talk/media/base/mediacommon.h"
#include "talk/media/base/videocapturerfactory.h"
#include "talk/media/devices/deviceinfo.h"
#include "talk/media/devices/filevideocapturer.h"
#include "talk/media/devices/yuvframescapturer.h"
#include "webrtc/base/fileutils.h"
#include "webrtc/base/logging.h"
#include "webrtc/base/pathutils.h"
#include "webrtc/base/stringutils.h"
#include "webrtc/base/thread.h"
#include "webrtc/base/windowpicker.h"
#include "webrtc/base/windowpickerfactory.h"
#ifdef HAVE_WEBRTC_VIDEO
#include "talk/media/webrtc/webrtcvideocapturerfactory.h"
#endif // HAVE_WEBRTC_VIDEO
namespace {
bool StringMatchWithWildcard(
const std::pair<const std::basic_string<char>, cricket::VideoFormat> key,
const std::string& val) {
return rtc::string_match(val.c_str(), key.first.c_str());
}
} // namespace
namespace cricket {
// Initialize to empty string.
const char DeviceManagerInterface::kDefaultDeviceName[] = "";
DeviceManager::DeviceManager()
: initialized_(false),
window_picker_(rtc::WindowPickerFactory::CreateWindowPicker()) {
#ifdef HAVE_WEBRTC_VIDEO
SetVideoDeviceCapturerFactory(new WebRtcVideoDeviceCapturerFactory());
#endif // HAVE_WEBRTC_VIDEO
}
DeviceManager::~DeviceManager() {
if (initialized()) {
Terminate();
}
}
bool DeviceManager::Init() {
if (!initialized()) {
if (!watcher()->Start()) {
return false;
}
set_initialized(true);
}
return true;
}
void DeviceManager::Terminate() {
if (initialized()) {
watcher()->Stop();
set_initialized(false);
}
}
int DeviceManager::GetCapabilities() {
std::vector<Device> devices;
int caps = VIDEO_RECV;
if (GetAudioInputDevices(&devices) && !devices.empty()) {
caps |= AUDIO_SEND;
}
if (GetAudioOutputDevices(&devices) && !devices.empty()) {
caps |= AUDIO_RECV;
}
if (GetVideoCaptureDevices(&devices) && !devices.empty()) {
caps |= VIDEO_SEND;
}
return caps;
}
bool DeviceManager::GetAudioInputDevices(std::vector<Device>* devices) {
return GetAudioDevices(true, devices);
}
bool DeviceManager::GetAudioOutputDevices(std::vector<Device>* devices) {
return GetAudioDevices(false, devices);
}
bool DeviceManager::GetAudioInputDevice(const std::string& name, Device* out) {
return GetAudioDevice(true, name, out);
}
bool DeviceManager::GetAudioOutputDevice(const std::string& name, Device* out) {
return GetAudioDevice(false, name, out);
}
bool DeviceManager::GetVideoCaptureDevices(std::vector<Device>* devices) {
devices->clear();
#if defined(ANDROID) || defined(IOS)
// On Android and iOS, we treat the camera(s) as a single device. Even if
// there are multiple cameras, that's abstracted away at a higher level.
Device dev("camera", "1"); // name and ID
devices->push_back(dev);
return true;
#else
return false;
#endif
}
bool DeviceManager::GetVideoCaptureDevice(const std::string& name,
Device* out) {
// If the name is empty, return the default device.
if (name.empty() || name == kDefaultDeviceName) {
return GetDefaultVideoCaptureDevice(out);
}
std::vector<Device> devices;
if (!GetVideoCaptureDevices(&devices)) {
return false;
}
for (std::vector<Device>::const_iterator it = devices.begin();
it != devices.end(); ++it) {
if (name == it->name) {
*out = *it;
return true;
}
}
// If |name| is a valid name for a file or yuvframedevice,
// return a fake video capturer device.
if (GetFakeVideoCaptureDevice(name, out)) {
return true;
}
return false;
}
bool DeviceManager::GetFakeVideoCaptureDevice(const std::string& name,
Device* out) const {
if (rtc::Filesystem::IsFile(name)) {
*out = FileVideoCapturer::CreateFileVideoCapturerDevice(name);
return true;
}
if (name == YuvFramesCapturer::kYuvFrameDeviceName) {
*out = YuvFramesCapturer::CreateYuvFramesCapturerDevice();
return true;
}
return false;
}
void DeviceManager::SetVideoCaptureDeviceMaxFormat(
const std::string& usb_id,
const VideoFormat& max_format) {
max_formats_[usb_id] = max_format;
}
void DeviceManager::ClearVideoCaptureDeviceMaxFormat(
const std::string& usb_id) {
max_formats_.erase(usb_id);
}
VideoCapturer* DeviceManager::CreateVideoCapturer(const Device& device) const {
VideoCapturer* capturer = MaybeConstructFakeVideoCapturer(device);
if (capturer) {
return capturer;
}
if (!video_device_capturer_factory_) {
LOG(LS_ERROR) << "No video capturer factory for devices.";
return NULL;
}
capturer = video_device_capturer_factory_->Create(device);
if (!capturer) {
return NULL;
}
LOG(LS_INFO) << "Created VideoCapturer for " << device.name;
VideoFormat video_format;
bool has_max = GetMaxFormat(device, &video_format);
capturer->set_enable_camera_list(has_max);
if (has_max) {
capturer->ConstrainSupportedFormats(video_format);
}
return capturer;
}
VideoCapturer* DeviceManager::MaybeConstructFakeVideoCapturer(
const Device& device) const {
// TODO(hellner): Throw out the creation of a file video capturer once the
// refactoring is completed.
if (FileVideoCapturer::IsFileVideoCapturerDevice(device)) {
FileVideoCapturer* capturer = new FileVideoCapturer;
if (!capturer->Init(device)) {
delete capturer;
return NULL;
}
LOG(LS_INFO) << "Created file video capturer " << device.name;
capturer->set_repeat(FileVideoCapturer::kForever);
return capturer;
}
if (YuvFramesCapturer::IsYuvFramesCapturerDevice(device)) {
YuvFramesCapturer* capturer = new YuvFramesCapturer();
capturer->Init();
return capturer;
}
return NULL;
}
bool DeviceManager::GetWindows(
std::vector<rtc::WindowDescription>* descriptions) {
if (!window_picker_) {
return false;
}
return window_picker_->GetWindowList(descriptions);
}
bool DeviceManager::GetDesktops(
std::vector<rtc::DesktopDescription>* descriptions) {
if (!window_picker_) {
return false;
}
return window_picker_->GetDesktopList(descriptions);
}
VideoCapturer* DeviceManager::CreateScreenCapturer(
const ScreencastId& screenid) const {
if (!screen_capturer_factory_) {
LOG(LS_ERROR) << "No video capturer factory for screens.";
return NULL;
}
return screen_capturer_factory_->Create(screenid);
}
bool DeviceManager::GetAudioDevices(bool input,
std::vector<Device>* devs) {
devs->clear();
#if defined(ANDROID)
// Under Android, 0 is always required for the playout device and 0 is the
// default for the recording device.
devs->push_back(Device("default-device", 0));
return true;
#else
// Other platforms either have their own derived class implementation
// (desktop) or don't use device manager for audio devices (iOS).
return false;
#endif
}
bool DeviceManager::GetAudioDevice(bool is_input, const std::string& name,
Device* out) {
// If the name is empty, return the default device id.
if (name.empty() || name == kDefaultDeviceName) {
*out = Device(name, -1);
return true;
}
std::vector<Device> devices;
bool ret = is_input ? GetAudioInputDevices(&devices) :
GetAudioOutputDevices(&devices);
if (ret) {
ret = false;
for (size_t i = 0; i < devices.size(); ++i) {
if (devices[i].name == name) {
*out = devices[i];
ret = true;
break;
}
}
}
return ret;
}
bool DeviceManager::GetDefaultVideoCaptureDevice(Device* device) {
bool ret = false;
// We just return the first device.
std::vector<Device> devices;
ret = (GetVideoCaptureDevices(&devices) && !devices.empty());
if (ret) {
*device = devices[0];
}
return ret;
}
bool DeviceManager::IsInWhitelist(const std::string& key,
VideoFormat* video_format) const {
std::map<std::string, VideoFormat>::const_iterator found =
std::search_n(max_formats_.begin(), max_formats_.end(), 1, key,
StringMatchWithWildcard);
if (found == max_formats_.end()) {
return false;
}
*video_format = found->second;
return true;
}
bool DeviceManager::GetMaxFormat(const Device& device,
VideoFormat* video_format) const {
// Match USB ID if available. Failing that, match device name.
std::string usb_id;
if (GetUsbId(device, &usb_id) && IsInWhitelist(usb_id, video_format)) {
return true;
}
return IsInWhitelist(device.name, video_format);
}
bool DeviceManager::ShouldDeviceBeIgnored(const std::string& device_name,
const char* const exclusion_list[]) {
// If exclusion_list is empty return directly.
if (!exclusion_list)
return false;
int i = 0;
while (exclusion_list[i]) {
if (strnicmp(device_name.c_str(), exclusion_list[i],
strlen(exclusion_list[i])) == 0) {
LOG(LS_INFO) << "Ignoring device " << device_name;
return true;
}
++i;
}
return false;
}
bool DeviceManager::FilterDevices(std::vector<Device>* devices,
const char* const exclusion_list[]) {
if (!devices) {
return false;
}
for (std::vector<Device>::iterator it = devices->begin();
it != devices->end(); ) {
if (ShouldDeviceBeIgnored(it->name, exclusion_list)) {
it = devices->erase(it);
} else {
++it;
}
}
return true;
}
} // namespace cricket