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@atovpeko
atovpeko committed Oct 19, 2023
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21 changes: 11 additions & 10 deletions shared/video-sdk/develop/_ensure-channel-quality.mdx
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Expand Up @@ -188,53 +188,54 @@ The recommended settings for these different scenarios are:
| 480p_8 | 848 × 480 | 15 | 610 |
| 480p_9 | 848 × 480 | 30 | 930 |
| 480p_10 | 640 × 480 | 10 | 400 |
| **540p (Default)**| **960 × 540** | **15** | **1100** |
| 540p | 960 × 540 | 15 | 1100 |
| 720p | 1280 × 720 | 15 | 1130 |
| 720p_1 | 1280 × 720 | 15 | 1130 |
| 720p_2 | 1280 × 720 | 30 | 2000 |
| 720p_3 | 1280 × 720 | 30 | 1710 |
| 720p_5 | 960 × 720 | 15 | 910 |
| 720p_6 | 960 × 720 | 30 | 1380 |
| 720p_auto | 1280 × 720 | 30 | 3000 |
| 1080p | 1920 × 1080 | 15 | 2080 |
| 1080p_1 | 1920 × 1080 | 15 | 2080 |
| 1080p_2 | 1920 × 1080 | 30 | 3000 |
| 1080p_3 | 1920 × 1080 | 30 | 3150 |
| 1080p_5 | 1920 × 1080 | 60 | 4780 |

<PlatformWrapper platform="android">
For more details, see <Link to="{{Global.API_REF_ANDROID_ROOT}}/class_videoencoderconfiguration.html">VideoEncoderConfiguration</Link>.
The default video profile is 540p. For more details, see <Link to="{{Global.API_REF_ANDROID_ROOT}}/class_videoencoderconfiguration.html">VideoEncoderConfiguration</Link>.
</PlatformWrapper>

<PlatformWrapper platform="ios">
For more details, see <Link to="{{Global.API_REF_IOS_ROOT_RTC_KIT}}/agoravideoencoderconfiguration">AgoraVideoEncoderConfiguration</Link>.
The default video profile is 540p. For more details, see <Link to="{{Global.API_REF_IOS_ROOT_RTC_KIT}}/agoravideoencoderconfiguration">AgoraVideoEncoderConfiguration</Link>.
</PlatformWrapper>

<PlatformWrapper platform="web">
For more details, see <Link to="{{Global.API_REF_WEB_ROOT}}/globals.html#videoencoderconfigurationpreset">VideoEncoderConfigurationPreset</Link>.
The default video profile is 480p_1. For more details, see <Link to="{{Global.API_REF_WEB_ROOT}}/globals.html#videoencoderconfigurationpreset">VideoEncoderConfigurationPreset</Link>.
</PlatformWrapper>

<PlatformWrapper platform="macos">
For more details, see <Link to="{{Global.API_REF_MACOS_ROOT_RTC_KIT}}/agoravideoencoderconfiguration">AgoraVideoEncoderConfiguration</Link>.
The default video profile is 540p. For more details, see <Link to="{{Global.API_REF_MACOS_ROOT_RTC_KIT}}/agoravideoencoderconfiguration">AgoraVideoEncoderConfiguration</Link>.
</PlatformWrapper>

<PlatformWrapper platform="windows">
For more details, see <Link to="{{Global.API_REF_CPP_ROOT}}/class_videoencoderconfiguration.html">VideoEncoderConfiguration</Link>.
The default video profile is 540p. For more details, see <Link to="{{Global.API_REF_CPP_ROOT}}/class_videoencoderconfiguration.html">VideoEncoderConfiguration</Link>.
</PlatformWrapper>

<PlatformWrapper platform="electron">
For more details, see <Link to="{{Global.API_REF_ELECTRON_ROOT}}/class_videoencoderconfiguration.html">VideoEncoderConfiguration</Link>.
The default video profile is 540p. For more details, see <Link to="{{Global.API_REF_ELECTRON_ROOT}}/class_videoencoderconfiguration.html">VideoEncoderConfiguration</Link>.
</PlatformWrapper>

<PlatformWrapper platform="unity">
For more details, see <Link to="{{Global.API_REF_UNITY_ROOT}}/class_videoencoderconfiguration.html">VideoEncoderConfiguration</Link>.
The default video profile is 540p. For more details, see <Link to="{{Global.API_REF_UNITY_ROOT}}/class_videoencoderconfiguration.html">VideoEncoderConfiguration</Link>.
</PlatformWrapper>

<PlatformWrapper platform="flutter">
For more details, see <Link to="{{Global.API_REF_FLUTTER_ROOT}}/class_videoencoderconfiguration.html">VideoEncoderConfiguration</Link>.
The default video profile is 540p. For more details, see <Link to="{{Global.API_REF_FLUTTER_ROOT}}/class_videoencoderconfiguration.html">VideoEncoderConfiguration</Link>.
</PlatformWrapper>

<PlatformWrapper platform="react-native">
For more details, see <Link to="{{Global.API_REF_RN_ROOT}}/class_videoencoderconfiguration.html">VideoEncoderConfiguration</Link>.
The default video profile is 540p. For more details, see <Link to="{{Global.API_REF_RN_ROOT}}/class_videoencoderconfiguration.html">VideoEncoderConfiguration</Link>.
</PlatformWrapper>

### Mainstream video profiles
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33 changes: 30 additions & 3 deletions shared/video-sdk/reference/release-notes/web.mdx
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Expand Up @@ -11,6 +11,33 @@ See [Supported platforms](../reference/supported-platforms).

See [Known issues](known-issues).

### v4.19.2

v4.19.2 was released on October 20, 2023.

#### Improvements

**VP9 codec (GA)**

This release advances VP9 from Beta to General Availability (GA) and introduces the following enhancements:

- Updated browser compatibility: VP9 now supports Safari 16.0 and later versions on both desktop and mobile platforms.
- Automatic fallback to VP8 for older browsers: If any user in a channel uses a browser version below the [specified compatibility threshold](#vp9-codec-beta), all VP9-encoded video streams in that channel will automatically transition to VP8.

Test results show that VP9 provides twice the quality of VP8 at equivalent bitrates.

**Dynamic resolution adjustment on Safari**

Safari has a known issue where it does not automatically reduce video encoding resolution under poor network conditions or reduced video frame rates, potentially leading to blurry video. To ensure user experience, this release adds the `"720p_auto"` preset to the video encoder configurations. This preset guarantees automatic adjustment of the video encoding resolution on Safari.

After upgrading to this version, if you are using a 720p video profile, Agora recommends switching to the `"720p_auto"` preset and setting the encoding format to `"vp9"` for optimal results.

#### API changes

**Added**

- `"720p_auto"` to `VideoEncoderConfigurationPreset`

### v4.19.1

v4.19.1 was released on October 11, 2023.
Expand Down Expand Up @@ -453,9 +480,9 @@ Video SDK for Web v4.15.0 adds support for the VP9 codec in the following browse

| | Supported browsers<sup>①</sup> |
| ------- | ------------------------------------------------------------ |
| Desktop | <li>Chrome 65 or later</li><li>Firefox 69 or later</li><li>Edge 79 or later</li> |
| Android | <li>Chrome 68 or later</li><li>Wechat v8.0.6 or later </li><li>Other apps that use WKWebView: WebView v55.0.28883.91 or later</li> |
| iOS | N/A |
| Desktop | <li>Chrome 65 or later</li><li>Firefox 69 or later</li><li>Edge 79 or later</li> <li>Safari 16 or later</li>|
| Android | <li>Chrome 68 or later</li><li>Wechat v8.0.6 or later </li><li>Other apps that use WKWebView: WebView v65.0.3325.109 or later</li> |
| iOS | Safari 16 or later |

<div class="alert info">① To ensure the best user experience, best practice is to use the latest version of the browsers listed above.</div>

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