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Add screen share rotation support #16

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Gustavo Emanuel Farias Rosa 2022-06-22 18:23:52 -03:00 committed by GitHub
parent e98cc51f44
commit 052101a6ad
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 21 additions and 1 deletions
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22
ios-broadcast-upload-extension/Classes/ScreenBroadcasterService.swift
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@ -6,6 +6,7 @@
import os
import bigbluebutton_mobile_sdk_common
import WebRTC
import UIKit
open class ScreenBroadcasterService {
// Logger (these messages are displayed in the console application)
@ -24,6 +25,8 @@ open class ScreenBroadcasterService {
"stun:stun3.l.google.com:19302",
"stun:stun4.l.google.com:19302"])
webRTCClient.delegate = self
}
public func createOffer() async -> String? {
@ -60,6 +63,23 @@ open class ScreenBroadcasterService {
if(!isConnected) {
self.logger.info("Ignoring pushVideoFrame - not connected")
} else {
var rotationFrame: RTCVideoRotation = ._0
var orientation = CGImagePropertyOrientation.up
if #available(iOS 11.0, *) {
if let orientationAttachment = CMGetAttachment(sampleBuffer, key: RPVideoSampleOrientationKey as CFString, attachmentModeOut: nil) as? NSNumber {
orientation = CGImagePropertyOrientation(rawValue: orientationAttachment.uint32Value) ?? .up
}
}
switch orientation.rawValue {
case UInt32(6):
rotationFrame = ._270
case UInt32(8):
rotationFrame = ._90
default:
rotationFrame = ._0
}
self.logger.info("pushing video")
let imageBuffer:CVImageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer)!
let timeStampNs: Int64 = Int64(CMTimeGetSeconds(CMSampleBufferGetPresentationTimeStamp(sampleBuffer)) * 1000000000)
@ -69,7 +89,7 @@ open class ScreenBroadcasterService {
webRTCClient.setRatio(originalWidth: rtcPixlBuffer.width, originalHeight: rtcPixlBuffer.height)
}
let rtcVideoFrame = RTCVideoFrame(buffer: rtcPixlBuffer, rotation: ._0, timeStampNs: timeStampNs)
let rtcVideoFrame = RTCVideoFrame(buffer: rtcPixlBuffer, rotation: rotationFrame, timeStampNs: timeStampNs)
self.webRTCClient.push(videoFrame: rtcVideoFrame)
self.logger.info("video pushed")
}