#JAKSTA MEDIA RECORDER SUPPORT 720P#

At a variable frame rate, sending 720p RGB24 video frames means processing approximately 80 megabytes per second of content. A single 720p RGB24 video frame requires 2,764,800 bytes of data that is 921,600 pixels times 3 bytes per pixel. In the RGB24 color format, each pixel is represented as 3 bytes that is 24 bits including 1 byte each of red, green, and blue color components.

Supported color formats include NV12 that is 12 bits per pixel and RGB24 that is 24 bits per pixel.ДЄ 720-p video frame contains 921,600 pixels that is 1280 times 720. Supported frame sizes include 640x360 that is 360 pixels, 1280x720 that is 720 pixels, and 1920x1080 that is 1080 pixels. Two key properties of a video format are its frame size and color format. In video format, several formats are supported. A 20-ms audio frame contains 320 samples that are 640 bytes of data. In audio format, each second of audio is represented as 16,000 samples, with each sample containing 16 bits of data. The next section provides details about the audio and video format used in real-time media calls and meetings. The number of frames transmitted or rendered per second is called the frame rate. Each image is intended to be viewed for just 33.3 ms that is 1/30th of a second before the next video frame. One second of video is transmitted as a sequence of 30 still images. Each frame contains 20 ms that is 1/50th of a second of speech content. One second of audio is transmitted as a sequence of 50 frames. The bot is sending and receiving media as a sequence of frames and each frame is a content unit. Frames and frame rateДЄ real-time media bot interacts directly with the audio and video modalities of a media session. The next section provides details about the bot sending and receiving media as a sequence of frames.

The bot can see more than one participant in the meeting. When joined to a Teams meeting, a bot can receive multiple main videos streams simultaneously up to 10 per media session. The platform allows a bot to send and receive both video types. The video-based screen sharing allows a user to share the screen. The main video is used to transport the video from a user's webcam. Two types of video modalities are supported, main video and video-based screen sharing. The set of audio and video modalities established between the bot and the Teams caller or meeting is called the media session. But the bot needs to only send video as it need not receive the video of the caller. For example, a bot designed to handle 1:1 Teams calls, requires to both send and receive audio. For each supported modality, the bot declares whether it can send and receive media, receive only, or send only. The real-time media bot must declare support when it answers an incoming call or joins a Teams meeting. Media sessionДЄ real-time media bot must declare what modalities it must support. A real-time media bot participates in 1:1 calls and meetings with multiple participants. The bot is only concerned with the actual audio or video content. The platform also handles all media packet encryption or decryption and packet network transmission. It uses codecs such as SILK and G.722 for audio and H.264 for video. It handles the real-time encoding and decoding of audio or video packets. The platform provides a simple socket-like API for the bot to send and receive media. The bot can also send and receive high-definition-resolution video, including video-based screen sharing content. No need to wait for a recording after the user has stopped speaking. An application-hosted media bot can do real-time speech recognition as the audio frames are received. The bot receives audio frames with each frame of 20 milliseconds (ms) of audio. Bots that process media themselves are called application-hosted media bots.ДЇor example, in a 1:1 call with a bot, as the user speaks, the bot receives 50 audio frames per second. There are simpler service-hosted media bots that rely on the Real-time Media Platform for all media processing. The bot has raw access to the voice, video, and screen sharing media streams. The Real-time Media Platform is an advanced capability that allows the bot to send and receive voice and video content frame by frame. The Real-time Media Platform enables bots to interact with Microsoft Teams calls and meetings using real-time voice, video, and screen sharing.

Jaksta media recorder support