...

{
 "uri": "transcoder://tcode1",
 "remoteStreamName": "test",
 "localStreamName": "testT",
 "encoder": {
  "width": 640,
  "height": 480,
  "keyFrameInterval": 30,
  "fps": 30,
  "watermark": "/opt/media/Test.png"
 }
}

Multithreaded encoding

Since build 5.2.816 multithreaded strems encoding is supported using OpenH264 encoder. Encoder threads count can be set with the following parameter

video_encoder_max_threads=2

By default, streams will be encoded in 2 threads.

Multi threaded encoding is enabled depending on transcoder output stream resolution. The threshold can be set with the following parameter

video_encoder_second_thread_threshold=777000

The threshold value is the product of the picture width multiplication to the height. Therefore, 720p and higher resolutions wiil be encoded in multiple threads. This threshold can be lowered if necessary. For example, to encode 480p pictures in multiple threads, set the following value

video_encoder_second_thread_threshold=408950