HLS Stream Quality

[Rafael Ribeiro]

Hello Max,

We are confused about HLS.

How to define 720p quality to HLS on edge?
We start the HLS by API, but how to call an specific transcoder to them?

 

[Max]

Good day.

How to define 720p quality to HLS on edge?
We start the HLS by API, but how to call an specific transcoder to them?

You should use CDN transcoding profiles for this purpose. For example, define the following profiles in cdn_profiles.yml

profiles:
 -240p:
  audio:
    codec : mpeg4-generic
    rate : 48000
  video:
    height : 240
    bitrate : 300
    gop : 50
    codec : h264
    codecImpl : FF
 -360p:
  video:
    height : 360
    bitrate : 400
    gop : 50
    codec : h264
    codecImpl : FF
 -480p:
  video:
    height : 480
    bitrate : 600
    gop : 50
    codec : h264
    codecImpl : FF
 -720p:
  video:
    height : 720
    bitrate : 1000
    gop : 50
    codec : h264
    codecImpl : FF

Then you can play HLS with profile needed

http://edge:8082/stream-480p/stream-480p.m3u8

Usually, a dedicated transcoder servers are deployed to perform transcoding. If you have a powerful Origin, you can set on Edge nodes

cdn_origin_allowed_to_transcode=true

but separate Transcoder is more flexible to configure.

 

[Rafael Ribeiro]

Works like a charm!