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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "device_info_avfoundation.h"
#include <CoreVideo/CVPixelBuffer.h>
#include <string>
#include "components/capturer/RTCCameraVideoCapturer.h"
#import "helpers/NSString+StdString.h"
#include "media/base/video_common.h"
#include "modules/video_capture/video_capture_defines.h"
#include "rtc_base/logging.h"
namespace webrtc::videocapturemodule {
/* static */
int32_t DeviceInfoAvFoundation::ConvertAVFrameRateToCapabilityFPS(Float64 aRate) {
return static_cast<int32_t>(aRate);
}
/* static */
webrtc::VideoType DeviceInfoAvFoundation::ConvertFourCCToVideoType(FourCharCode aCode) {
switch (aCode) {
case kCVPixelFormatType_420YpCbCr8Planar:
case kCVPixelFormatType_420YpCbCr8PlanarFullRange:
return webrtc::VideoType::kI420;
case kCVPixelFormatType_24BGR:
return webrtc::VideoType::kRGB24;
case kCVPixelFormatType_32ABGR:
return webrtc::VideoType::kABGR;
case kCMPixelFormat_32ARGB:
return webrtc::VideoType::kBGRA;
case kCMPixelFormat_32BGRA:
return webrtc::VideoType::kARGB;
case kCMPixelFormat_16LE565:
return webrtc::VideoType::kRGB565;
case kCMPixelFormat_16LE555:
case kCMPixelFormat_16LE5551:
return webrtc::VideoType::kARGB1555;
case kCMPixelFormat_422YpCbCr8_yuvs:
return webrtc::VideoType::kYUY2;
case kCMPixelFormat_422YpCbCr8:
return webrtc::VideoType::kUYVY;
case kCMVideoCodecType_JPEG:
case kCMVideoCodecType_JPEG_OpenDML:
return webrtc::VideoType::kMJPEG;
case kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange:
case kCVPixelFormatType_420YpCbCr8BiPlanarFullRange:
return webrtc::VideoType::kNV12;
default:
RTC_LOG(LS_WARNING) << "Unhandled FourCharCode" << aCode;
return webrtc::VideoType::kUnknown;
}
}
DeviceInfoAvFoundation::DeviceInfoAvFoundation()
: mInvalidateCapabilities(false), mDeviceChangeCaptureInfo([[DeviceInfoIosObjC alloc] init]) {
[mDeviceChangeCaptureInfo registerOwner:this];
}
DeviceInfoAvFoundation::~DeviceInfoAvFoundation() { [mDeviceChangeCaptureInfo registerOwner:nil]; }
void DeviceInfoAvFoundation::DeviceChange() {
mInvalidateCapabilities = true;
DeviceInfo::DeviceChange();
}
uint32_t DeviceInfoAvFoundation::NumberOfDevices() {
RTC_DCHECK_RUN_ON(&mChecker);
EnsureCapabilitiesMap();
return mDevicesAndCapabilities.size();
}
int32_t DeviceInfoAvFoundation::GetDeviceName(uint32_t aDeviceNumber, char* aDeviceNameUTF8,
uint32_t aDeviceNameLength, char* aDeviceUniqueIdUTF8,
uint32_t aDeviceUniqueIdUTF8Length,
char* /* aProductUniqueIdUTF8 */,
uint32_t /* aProductUniqueIdUTF8Length */,
pid_t* /* aPid */) {
RTC_DCHECK_RUN_ON(&mChecker);
// Don't EnsureCapabilitiesMap() here, since:
// 1) That might invalidate the capabilities map
// 2) This function depends on the device index
if (aDeviceNumber >= mDevicesAndCapabilities.size()) {
return -1;
}
const auto& [uniqueId, name, _] = mDevicesAndCapabilities[aDeviceNumber];
strncpy(aDeviceUniqueIdUTF8, uniqueId.c_str(), aDeviceUniqueIdUTF8Length);
aDeviceUniqueIdUTF8[aDeviceUniqueIdUTF8Length - 1] = '\0';
strncpy(aDeviceNameUTF8, name.c_str(), aDeviceNameLength);
aDeviceNameUTF8[aDeviceNameLength - 1] = '\0';
return 0;
}
int32_t DeviceInfoAvFoundation::NumberOfCapabilities(const char* aDeviceUniqueIdUTF8) {
RTC_DCHECK_RUN_ON(&mChecker);
std::string deviceUniqueId(aDeviceUniqueIdUTF8);
const auto* tup = FindDeviceAndCapabilities(deviceUniqueId);
if (!tup) {
return 0;
}
const auto& [_, __, capabilities] = *tup;
return static_cast<int32_t>(capabilities.size());
}
int32_t DeviceInfoAvFoundation::GetCapability(const char* aDeviceUniqueIdUTF8,
const uint32_t aDeviceCapabilityNumber,
VideoCaptureCapability& aCapability) {
RTC_DCHECK_RUN_ON(&mChecker);
std::string deviceUniqueId(aDeviceUniqueIdUTF8);
const auto* tup = FindDeviceAndCapabilities(deviceUniqueId);
if (!tup) {
return -1;
}
const auto& [_, __, capabilities] = *tup;
if (aDeviceCapabilityNumber >= capabilities.size()) {
return -1;
}
aCapability = capabilities[aDeviceCapabilityNumber];
return 0;
}
int32_t DeviceInfoAvFoundation::CreateCapabilityMap(const char* aDeviceUniqueIdUTF8) {
RTC_DCHECK_RUN_ON(&mChecker);
const size_t deviceUniqueIdUTF8Length = strlen(aDeviceUniqueIdUTF8);
if (deviceUniqueIdUTF8Length > kVideoCaptureUniqueNameLength) {
RTC_LOG(LS_INFO) << "Device name too long";
return -1;
}
RTC_LOG(LS_INFO) << "CreateCapabilityMap called for device " << aDeviceUniqueIdUTF8;
std::string deviceUniqueId(aDeviceUniqueIdUTF8);
const auto* tup = FindDeviceAndCapabilities(deviceUniqueId);
if (!tup) {
RTC_LOG(LS_INFO) << "no matching device found";
return -1;
}
// Store the new used device name
_lastUsedDeviceNameLength = deviceUniqueIdUTF8Length;
_lastUsedDeviceName =
static_cast<char*>(realloc(_lastUsedDeviceName, _lastUsedDeviceNameLength + 1));
memcpy(_lastUsedDeviceName, aDeviceUniqueIdUTF8, _lastUsedDeviceNameLength + 1);
const auto& [_, __, capabilities] = *tup;
_captureCapabilities = capabilities;
return static_cast<int32_t>(_captureCapabilities.size());
}
auto DeviceInfoAvFoundation::FindDeviceAndCapabilities(const std::string& aDeviceUniqueId) const
-> const std::tuple<std::string, std::string, VideoCaptureCapabilities>* {
RTC_DCHECK_RUN_ON(&mChecker);
for (const auto& tup : mDevicesAndCapabilities) {
if (std::get<0>(tup) == aDeviceUniqueId) {
return &tup;
}
}
return nullptr;
}
void DeviceInfoAvFoundation::EnsureCapabilitiesMap() {
RTC_DCHECK_RUN_ON(&mChecker);
if (mInvalidateCapabilities.exchange(false)) {
mDevicesAndCapabilities.clear();
}
if (!mDevicesAndCapabilities.empty()) {
return;
}
for (AVCaptureDevice* device in [RTCCameraVideoCapturer captureDevices]) {
std::string uniqueId = [NSString stdStringForString:device.uniqueID];
std::string name = [NSString stdStringForString:device.localizedName];
auto& [_, __, capabilities] =
mDevicesAndCapabilities.emplace_back(uniqueId, name, VideoCaptureCapabilities());
for (AVCaptureDeviceFormat* format in
[RTCCameraVideoCapturer supportedFormatsForDevice:device]) {
VideoCaptureCapability cap;
FourCharCode fourcc = CMFormatDescriptionGetMediaSubType(format.formatDescription);
cap.videoType = ConvertFourCCToVideoType(fourcc);
CMVideoDimensions dimensions =
CMVideoFormatDescriptionGetDimensions(format.formatDescription);
cap.width = dimensions.width;
cap.height = dimensions.height;
for (AVFrameRateRange* range in format.videoSupportedFrameRateRanges) {
cap.maxFPS = ConvertAVFrameRateToCapabilityFPS(range.maxFrameRate);
capabilities.push_back(cap);
}
if (capabilities.empty()) {
cap.maxFPS = 30;
capabilities.push_back(cap);
}
}
}
}
} // namespace webrtc::videocapturemodule
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