not able to add text watermarking in stream

[dhwanild]

Hi

i use "/rest-api/stream/inject2/startup" API to play video in stream
i would like to add text watermarking with above API.

can you please help or suggest step to add text watermarking while playing video

 

[Max]

Watermark requires Transcoding API

Stream transcoding - Web Call Server 5.2 - EN - Flashphoner Documentation

docs.flashphoner.com

1. Publish stream1
2. Transcode stream1 to stream1_output
/rest-api/transcoder/startup
3. Set watermark for Transcoder URI
/rest-api/transcoder/set_watermark
4. Play stream1_output with Watermark.

Please note.
Video transcoding is CPU extensive operation.
It may utilize 2 physical CPU cores for 720p streams in real time.

 

[dhwanild]

Thanks for reply

using Transcoding API i can add watermark image, i want to add text that is not able to do with Transcoding API

 

[Max]

You can use a third party tool to convert text to image as supposed in this article, then apply the image as watermark.

 

[dhwanild]

can we set external image URL as watermark.?

 

[Max]

No, you can only get image from local file system.

 

[Max]

Good day.
Since build 5.2.2087 a watermark picture may be downloaded from external site by URL: permanently

custom_watermark_filename=https://server/pics/watermark.png

or on transcoder startup

POST /rest-api/transcoder2/startup HTTP/1.1
Host: localhost:8081
Content-Type: application/json

{
    "uri": "transcoder2://tcode2",
    "remoteStreamName": "test",
    "localStreamName": "testT",
    "encoder": {
        "width": 320,
        "height": 240,
        "keyFrameInterval": 60,
        "fps": 30,
        "watermark": "https://server/pics/watermark.png"
    }
}

 

[Max]

Good day.
Since build 5.2.2244, a text watermark may be applied to transcoded stream when creating transcoder using REST API

POST /rest-api/transcoder/startup HTTP/1.1
Host: localhost:8081
Content-Type: application/json

{
   "uri": "transcoder://tcode1",
   "remoteStreamName": "test",
   "localStreamName": "testT",
   "encoder": {
      "width": 640,
      "height": 480,
      "keyFrameInterval": 30,
      "fps": 30,
      "text": "A text watermark",
      "fontSize": 40,
      "textAlign":"TOP_LEFT"
   }
}