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2 changes: 1 addition & 1 deletion docs/latest/.sha
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370a737ced00938da0a8140d894abaf23bbb6256
429b5376cbe31dc55a4318d2f73b3cbb05dd680a
1 change: 1 addition & 0 deletions docs/latest/api/app.md
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Expand Up @@ -428,6 +428,7 @@ Returns:
* `oom` - Process ran out of memory
* `launch-failed` - Process never successfully launched
* `integrity-failure` - Windows code integrity checks failed
* `memory-eviction` - Process proactively terminated to prevent a future out-of-memory (OOM) situation
* `exitCode` number - The exit code for the process
(e.g. status from waitpid if on POSIX, from GetExitCodeProcess on Windows).
* `serviceName` string (optional) - The non-localized name of the process.
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34 changes: 32 additions & 2 deletions docs/latest/api/command-line-switches.md
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Expand Up @@ -93,7 +93,7 @@ Field trials to be forcefully enabled or disabled.

For example: `WebRTC-Audio-Red-For-Opus/Enabled/`

### --host-rules=`rules`
### --host-rules=`rules` _Deprecated_

A comma-separated list of `rules` that control how hostnames are mapped.

Expand All @@ -111,9 +111,23 @@ These mappings apply to the endpoint host in a net request (the TCP connect
and host resolver in a direct connection, and the `CONNECT` in an HTTP proxy
connection, and the endpoint host in a `SOCKS` proxy connection).

**Deprecated:** Use the `--host-resolver-rules` switch instead.

### --host-resolver-rules=`rules`

Like `--host-rules` but these `rules` only apply to the host resolver.
A comma-separated list of `rules` that control how hostnames are mapped.

For example:

* `MAP * 127.0.0.1` Forces all hostnames to be mapped to 127.0.0.1
* `MAP *.google.com proxy` Forces all google.com subdomains to be resolved to
"proxy".
* `MAP test.com [::1]:77` Forces "test.com" to resolve to IPv6 loopback. Will
also force the port of the resulting socket address to be 77.
* `MAP * baz, EXCLUDE www.google.com` Remaps everything to "baz", except for
"www.google.com".

These `rules` only apply to the host resolver.

### --ignore-certificate-errors

Expand Down Expand Up @@ -338,6 +352,22 @@ Affects the default output directory of [v8.setHeapSnapshotNearHeapLimit](https:

Disable exposition of [Navigator API][] on the global scope from Node.js.

## Chromium Flags

There isn't a documented list of all Chromium switches, but there are a few ways to find them.

The easiest way is through Chromium's flags page, which you can access at `about://flags`. These flags don't directly match switch names, but they show up in the process's command-line arguments.

To see these arguments, enable a flag in `about://flags`, then go to `about://version` in Chromium. You'll find a list of command-line arguments, including `--flag-switches-begin --your --list --flag-switches-end`, which contains the list of your flag enabled switches.

Most flags are included as part of `--enable-features=`, but some are standalone switches, like `--enable-experimental-web-platform-features`.

A complete list of flags exists in [Chromium's flag metadata page](https://source.chromium.org/chromium/chromium/src/+/main:chrome/browser/flag-metadata.json), but this list includes platform, environment and GPU specific, expired and potentially non-functional flags, so many of them might not always work in every situation.

Keep in mind that standalone switches can sometimes be split into individual features, so there's no fully complete list of switches.

Finally, you'll need to ensure that the version of Chromium in Electron matches the version of the browser you're using to cross-reference the switches.

[app]: app.md
[append-switch]: command-line.md#commandlineappendswitchswitch-value
[debugging-main-process]: ../tutorial/debugging-main-process.md
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1 change: 1 addition & 0 deletions docs/latest/api/context-bridge.md
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Expand Up @@ -162,6 +162,7 @@ has been included below for completeness:
| [Cloneable Types](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm) | Simple | ✅ | ✅ | See the linked document on cloneable types |
| `Element` | Complex | ✅ | ✅ | Prototype modifications are dropped. Sending custom elements will not work. |
| `Blob` | Complex | ✅ | ✅ | N/A |
| `VideoFrame` | Complex | ✅ | ✅ | N/A |
| `Symbol` | N/A | ❌ | ❌ | Symbols cannot be copied across contexts so they are dropped |

If the type you care about is not in the above table, it is probably not supported.
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4 changes: 4 additions & 0 deletions docs/latest/api/desktop-capturer.md
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Expand Up @@ -109,6 +109,10 @@ Returns `Promise<DesktopCapturerSource[]>` - Resolves with an array of [`Desktop

## Caveats

`desktopCapturer.getSources(options)` only returns a single source on Linux when using Pipewire.

PipeWire supports a single capture for both screens and windows. If you request the window and screen type, the selected source will be returned as a window capture.

`navigator.mediaDevices.getUserMedia` does not work on macOS for audio capture due to a fundamental limitation whereby apps that want to access the system's audio require a [signed kernel extension](https://developer.apple.com/library/archive/documentation/Security/Conceptual/System_Integrity_Protection_Guide/KernelExtensions/KernelExtensions.html). Chromium, and by extension Electron, does not provide this.

It is possible to circumvent this limitation by capturing system audio with another macOS app like Soundflower and passing it through a virtual audio input device. This virtual device can then be queried with `navigator.mediaDevices.getUserMedia`.
202 changes: 202 additions & 0 deletions docs/latest/api/structures/color-space.md
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---
title: "ColorSpace Object"
description: ""
slug: color-space
hide_title: false
---

# ColorSpace Object

* `primaries` string - The color primaries of the color space. Can be one of the following values:
* `bt709` - BT709 primaries (also used for sRGB)
* `bt470m` - BT470M primaries
* `bt470bg` - BT470BG primaries
* `smpte170m` - SMPTE170M primaries
* `smpte240m` - SMPTE240M primaries
* `film` - Film primaries
* `bt2020` - BT2020 primaries
* `smptest428-1` - SMPTEST428-1 primaries
* `smptest431-2` - SMPTEST431-2 primaries
* `p3` - P3 primaries
* `xyz-d50` - XYZ D50 primaries
* `adobe-rgb` - Adobe RGB primaries
* `apple-generic-rgb` - Apple Generic RGB primaries
* `wide-gamut-color-spin` - Wide Gamut Color Spin primaries
* `ebu-3213-e` - EBU 3213-E primaries
* `custom` - Custom primaries
* `invalid` - Invalid primaries

* `transfer` string - The transfer function of the color space. Can be one of the following values:
* `bt709` - BT709 transfer function
* `bt709-apple` - BT709 Apple transfer function
* `gamma18` - Gamma 1.8 transfer function
* `gamma22` - Gamma 2.2 transfer function
* `gamma24` - Gamma 2.4 transfer function
* `gamma28` - Gamma 2.8 transfer function
* `smpte170m` - SMPTE170M transfer function
* `smpte240m` - SMPTE240M transfer function
* `linear` - Linear transfer function
* `log` - Log transfer function
* `log-sqrt` - Log Square Root transfer function
* `iec61966-2-4` - IEC61966-2-4 transfer function
* `bt1361-ecg` - BT1361 ECG transfer function
* `srgb` - sRGB transfer function
* `bt2020-10` - BT2020-10 transfer function
* `bt2020-12` - BT2020-12 transfer function
* `pq` - PQ (Perceptual Quantizer) transfer function
* `smptest428-1` - SMPTEST428-1 transfer function
* `hlg` - HLG (Hybrid Log-Gamma) transfer function
* `srgb-hdr` - sRGB HDR transfer function
* `linear-hdr` - Linear HDR transfer function
* `custom` - Custom transfer function
* `custom-hdr` - Custom HDR transfer function
* `scrgb-linear-80-nits` - scRGB Linear 80 nits transfer function
* `invalid` - Invalid transfer function

* `matrix` string - The color matrix of the color space. Can be one of the following values:
* `rgb` - RGB matrix
* `bt709` - BT709 matrix
* `fcc` - FCC matrix
* `bt470bg` - BT470BG matrix
* `smpte170m` - SMPTE170M matrix
* `smpte240m` - SMPTE240M matrix
* `ycocg` - YCoCg matrix
* `bt2020-ncl` - BT2020 NCL matrix
* `ydzdx` - YDzDx matrix
* `gbr` - GBR matrix
* `invalid` - Invalid matrix

* `range` string - The color range of the color space. Can be one of the following values:
* `limited` - Limited color range (RGB values ranging from 16 to 235)
* `full` - Full color range (RGB values from 0 to 255)
* `derived` - Range defined by the transfer function and matrix
* `invalid` - Invalid range

## Common `ColorSpace` definitions

### Standard Color Spaces

**sRGB**:

```js
const cs = {
primaries: 'bt709',
transfer: 'srgb',
matrix: 'rgb',
range: 'full'
}
```

**Display P3**:

```js
const cs = {
primaries: 'p3',
transfer: 'srgb',
matrix: 'rgb',
range: 'full'
}
```

**XYZ D50**:

```js
const cs = {
primaries: 'xyz-d50',
transfer: 'linear',
matrix: 'rgb',
range: 'full'
}
```

### HDR Color Spaces

**Extended sRGB** (extends sRGB to all real values):

```js
const cs = {
primaries: 'bt709',
transfer: 'srgb-hdr',
matrix: 'rgb',
range: 'full'
}
```

**scRGB Linear** (linear transfer function for all real values):

```js
const cs = {
primaries: 'bt709',
transfer: 'linear-hdr',
matrix: 'rgb',
range: 'full'
}
```

**scRGB Linear 80 Nits** (with an SDR white level of 80 nits):

```js
const cs = {
primaries: 'bt709',
transfer: 'scrgb-linear-80-nits',
matrix: 'rgb',
range: 'full'
}
```

**HDR10** (BT.2020 primaries with PQ transfer function):

```js
const cs = {
primaries: 'bt2020',
transfer: 'pq',
matrix: 'rgb',
range: 'full'
}
```

**HLG** (BT.2020 primaries with HLG transfer function):

```js
const cs = {
primaries: 'bt2020',
transfer: 'hlg',
matrix: 'rgb',
range: 'full'
}
```

### Video Color Spaces

**Rec. 601** (SDTV):

```js
const cs = {
primaries: 'smpte170m',
transfer: 'smpte170m',
matrix: 'smpte170m',
range: 'limited'
}
```

**Rec. 709** (HDTV):

```js
const cs = {
primaries: 'bt709',
transfer: 'bt709',
matrix: 'bt709',
range: 'limited'
}
```

**JPEG** (typical color space for JPEG images):

```js
const cs = {
primaries: 'bt709',
transfer: 'srgb',
matrix: 'smpte170m',
range: 'full'
}
```
19 changes: 8 additions & 11 deletions docs/latest/api/structures/offscreen-shared-texture.md
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Expand Up @@ -9,23 +9,20 @@ hide_title: false

* `textureInfo` Object - The shared texture info.
* `widgetType` string - The widget type of the texture. Can be `popup` or `frame`.
* `pixelFormat` string - The pixel format of the texture. Can be `rgba` or `bgra`.
* `pixelFormat` string - The pixel format of the texture.
* `rgba` - The texture format is 8-bit unorm RGBA.
* `bgra` - The texture format is 8-bit unorm BGRA.
* `rgbaf16` - The texture format is 16-bit float RGBA.
* `codedSize` [Size](size.md) - The full dimensions of the video frame.
* `visibleRect` [Rectangle](rectangle.md) - A subsection of [0, 0, codedSize.width(), codedSize.height()]. In OSR case, it is expected to have the full section area.
* `colorSpace` [ColorSpace](color-space.md) - The color space of the video frame.
* `visibleRect` [Rectangle](rectangle.md) - A subsection of [0, 0, codedSize.width, codedSize.height]. In OSR case, it is expected to have the full section area.
* `contentRect` [Rectangle](rectangle.md) - The region of the video frame that capturer would like to populate. In OSR case, it is the same with `dirtyRect` that needs to be painted.
* `timestamp` number - The time in microseconds since the capture start.
* `metadata` Object - Extra metadata. See comments in src\media\base\video_frame_metadata.h for accurate details.
* `captureUpdateRect` [Rectangle](rectangle.md) (optional) - Updated area of frame, can be considered as the `dirty` area.
* `regionCaptureRect` [Rectangle](rectangle.md) (optional) - May reflect the frame's contents origin if region capture is used internally.
* `sourceSize` [Rectangle](rectangle.md) (optional) - Full size of the source frame.
* `frameCount` number (optional) - The increasing count of captured frame. May contain gaps if frames are dropped between two consecutively received frames.
* `sharedTextureHandle` Buffer _Windows_ _macOS_ - The handle to the shared texture.
* `planes` Object[] _Linux_ - Each plane's info of the shared texture.
* `stride` number - The strides and offsets in bytes to be used when accessing the buffers via a memory mapping. One per plane per entry.
* `offset` number - The strides and offsets in bytes to be used when accessing the buffers via a memory mapping. One per plane per entry.
* `size` number - Size in bytes of the plane. This is necessary to map the buffers.
* `fd` number - File descriptor for the underlying memory object (usually dmabuf).
* `modifier` string _Linux_ - The modifier is retrieved from GBM library and passed to EGL driver.
* `handle` [SharedTextureHandle](shared-texture-handle.md) - The shared texture handle data.
* `release` Function - Release the resources. The `texture` cannot be directly passed to another process, users need to maintain texture lifecycles in
main process, but it is safe to pass the `textureInfo` to another process. Only a limited number of textures can exist at the same time, so it's important
that you call `texture.release()` as soon as you're done with the texture.
main process, but it is safe to pass the `textureInfo` to another process. Only a limited number of textures can exist at the same time, so it's important that you call `texture.release()` as soon as you're done with the texture.
1 change: 1 addition & 0 deletions docs/latest/api/structures/render-process-gone-details.md
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Expand Up @@ -15,6 +15,7 @@ hide_title: false
* `oom` - Process ran out of memory
* `launch-failed` - Process never successfully launched
* `integrity-failure` - Windows code integrity checks failed
* `memory-eviction` - Process proactively terminated to prevent a future out-of-memory (OOM) situation
* `exitCode` Integer - The exit code of the process, unless `reason` is
`launch-failed`, in which case `exitCode` will be a platform-specific
launch failure error code.
19 changes: 19 additions & 0 deletions docs/latest/api/structures/shared-texture-handle.md
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---
title: "SharedTextureHandle Object"
description: ""
slug: shared-texture-handle
hide_title: false
---

# SharedTextureHandle Object

* `ntHandle` Buffer (optional) _Windows_ - NT HANDLE holds the shared texture. Note that this NT HANDLE is local to current process.
* `ioSurface` Buffer (optional) _macOS_ - IOSurfaceRef holds the shared texture. Note that this IOSurface is local to current process (not global).
* `nativePixmap` Object (optional) _Linux_ - Structure contains planes of shared texture.
* `planes` Object[] _Linux_ - Each plane's info of the shared texture.
* `stride` number - The strides and offsets in bytes to be used when accessing the buffers via a memory mapping. One per plane per entry.
* `offset` number - The strides and offsets in bytes to be used when accessing the buffers via a memory mapping. One per plane per entry.
* `size` number - Size in bytes of the plane. This is necessary to map the buffers.
* `fd` number - File descriptor for the underlying memory object (usually dmabuf).
* `modifier` string _Linux_ - The modifier is retrieved from GBM library and passed to EGL driver.
* `supportsZeroCopyWebGpuImport` boolean _Linux_ - Indicates whether supports zero copy import to WebGPU.
40 changes: 29 additions & 11 deletions docs/latest/api/structures/usb-device.md
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Expand Up @@ -7,18 +7,36 @@ hide_title: false

# USBDevice Object

* `configuration` Object (optional) - A [USBConfiguration](https://developer.mozilla.org/en-US/docs/Web/API/USBConfiguration) object containing information about the currently selected configuration of a USB device.
* `configurationValue` Integer - the configuration value of this configuration.
* `configurationName` string - the name provided by the device to describe this configuration.
* `interfaces` Object[] - An array of [USBInterface](https://developer.mozilla.org/en-US/docs/Web/API/USBInterface) objects containing information about an interface provided by the USB device.
* `interfaceNumber` Integer - the interface number of this interface.
* `alternate` Object - the currently selected alternative configuration of this interface.
* `alternateSetting` Integer - the alternate setting number of this interface.
* `interfaceClass` Integer - the class of this interface. See [USB.org](https://www.usb.org/defined-class-codes) for class code descriptions.
* `interfaceSubclass` Integer - the subclass of this interface.
* `interfaceProtocol` Integer - the protocol supported by this interface.
* `interfaceName` string (optional) - the name of the interface, if one is provided by the device.
* `endpoints` Object[] - an array containing instances of the [USBEndpoint interface](https://developer.mozilla.org/en-US/docs/Web/API/USBEndpoint) describing each of the endpoints that are part of this interface.
* `endpointNumber` Integer - this endpoint's "endpoint number" which is a value from 1 to 15.
* `direction` string - the direction in which this endpoint transfers data - can be either 'in' or 'out'.
* `type` string - the type of this endpoint - can be either 'bulk', 'interrupt', or 'isochronous'.
* `packetSize` Integer - the size of the packets that data sent through this endpoint will be divided into.
* `alternates` Object[] - an array containing instances of the [USBAlternateInterface](https://developer.mozilla.org/en-US/docs/Web/API/USBAlternateInterface) interface describing each of the alternative configurations possible for this interface.
* `configurations` Object[] - An array of [USBConfiguration](https://developer.mozilla.org/en-US/docs/Web/API/USBConfiguration) interfaces for controlling a paired USB device.
* `deviceClass` Integer - The device class for the communication interface supported by the device.
* `deviceId` string - Unique identifier for the device.
* `vendorId` Integer - The USB vendor ID.
* `productId` Integer - The USB product ID.
* `productName` string (optional) - Name of the device.
* `serialNumber` string (optional) - The USB device serial number.
* `manufacturerName` string (optional) - The manufacturer name of the device.
* `usbVersionMajor` Integer - The USB protocol major version supported by the device
* `usbVersionMinor` Integer - The USB protocol minor version supported by the device
* `usbVersionSubminor` Integer - The USB protocol subminor version supported by the device
* `deviceClass` Integer - The device class for the communication interface supported by the device
* `deviceSubclass` Integer - The device subclass for the communication interface supported by the device
* `deviceProtocol` Integer - The device protocol for the communication interface supported by the device
* `deviceProtocol` Integer - The device protocol for the communication interface supported by the device.
* `deviceSubclass` Integer - The device subclass for the communication interface supported by the device.
* `deviceVersionMajor` Integer - The major version number of the device as defined by the device manufacturer.
* `deviceVersionMinor` Integer - The minor version number of the device as defined by the device manufacturer.
* `deviceVersionSubminor` Integer - The subminor version number of the device as defined by the device manufacturer.
* `manufacturerName` string (optional) - The manufacturer name of the device.
* `productId` Integer - The USB product ID.
* `productName` string (optional) - Name of the device.
* `serialNumber` string (optional) - The USB device serial number.
* `usbVersionMajor` Integer - The USB protocol major version supported by the device.
* `usbVersionMinor` Integer - The USB protocol minor version supported by the device.
* `usbVersionSubminor` Integer - The USB protocol subminor version supported by the device.
* `vendorId` Integer - The USB vendor ID.
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