The Cloud Streaming Services console offers the Live Video Caster (LVC) service. This guide describes the features and main application scenarios of LVC.
Product Architecture
Live Video Caster Features
Category
Feature
Description
Input sources, up to 24 inputs supported
Live stream
Live stream pull:
Live stream conversion to stream pull: The feature enables configuring the URLs of current live streams to LVC, supporting RTMP, HLS, and HTTP-FLV protocols.
As for encoding formats, only H.264 encoding is supported for video, and AAC is supported for the audio.
Live push:
RTMP push: It refers to pushing the media files to the LVC system using the RTMP protocol.
As for encoding formats, only H.264 encoding is supported for video, and AAC is supported for the audio.
VOD
VOD URL:
It supports not only media files stored in Tencent Cloud COS but also files stored by other providers.
It supports the MP4, HLS and FLV formats (the FLV format is recommended).
The console will automatically play the files in the list in a loop.
As for encoding formats, only H.264 encoding is supported for video, and AAC is supported for the audio.
Image
Image URL:
The JPEG, JPG, PNG, and BMP image formats are supported.
The URL is configured to LVC, with the image size not exceeding 1920*1080 pixels.
Local Images:The PNG, JPG, and JPEG images can be uploaded, with the size not exceeding 5 M.
Local stream push
Local Camera:The local camera can be used as an input source, supporting resolutions of 19201080, 1280720, 640480, and 640360.
Screen Sharing:Screen sharing is supported with the options to select either the application window or the desktop, supporting resolutions of 19201080, 1280720, 640480, and 640360.
Output
Output as a live stream
The RTMP, HLS, and HTTP-FLV output stream protocols are supported.
Relay
Output stream can be pushed to other manufacturers using the RTMP protocol. The push stream address must be in the following format: rtmp://domain/app/stream?arg1=xxx.
Recording
All live recording capabilities are supported (MP4, HLS and FLV format recording, custom recording durations, and so on).
Audio/video processing
Video layout
Custom video layouts are available, with screen units adaptable to any input source.
Feature components
Watermark names can be added, and watermark positions can be accurately adjusted. Watermarks and text can be overlaid.
Prepared content for live stream
Custom playback video or images can be switched to when the main input source encounters issues.
Audio processing
The volume for each input stream in the output flow can be adjusted. Separation of audio and video is supported. For example, when video source 1 is being played, you can choose to play the audio of video source 2.
Director processing
Pre-monitor, main monitor
The layout of pre-monitor images and switching from pre-monitoring to main monitor are supported.
Delayed playback
Playback with delay of up to 300 seconds is supported. That is, the output stream can lag behind the main monitor by up to 300 seconds.
Documentation
LVC is mainly used in scenarios such as gaming and e-sports, e-commerce live streams, online education, live events, and so on. For more details, see the application scenarios.
LVC possesses powerful cloud capabilities, cost-efficiency and backup mechanisms, multi-screen mixed-stream layout, and more. For more details, see the product features.
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