How to stick logo and scrolling text on video using ffmpeg

Posted By : Chandan Kumar Singh | 27-Jul-2015

In this blog we will come to know how to add our own logo in a video as well as custom text which will scroll left to right in the middle postion of screen.


Lets see the command:

ffmpeg -rtsp_transport tcp -i rtsp:// -i /home/oodles/Desktop/logo.png -filter_complex "[0:v][1:v]overlay=main_w-overlay_w-10:10" -f flv pipe:1 | ffmpeg -i pipe:0 -vf "drawtext=text=oodlestechnologies :fontfile=/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf: y=((h)/2):x=(mod(5*n\,w+tw)-tw): fontcolor=red: fontsize=40: shadowx=-5: shadowy=-15" -vcodec libx264 -vb 400k -acodec aac -ab 100k -ar 48000 -ac 2 -f flv -muxdelay 0.1 rtmp://oodles:[email protected]:1935/live-demo/mstream

The sample output:-

  • Explanation of command:
  • "-rtsp_transport tcp " - Set RTSP transport protocols tcp.

  • "-i "- specifies the input file stored in local disk or live audio/video source.

  • "-filter_complex" - to recognize filtergraph.

  • "[0:v][1:v]overlay=main_w-overlay_w-10:10" - main_w refers to the width of the "main" input (the background or [0:v] or our main input here rtsp://,and overlay_w refers to the width of the "overlay" input (the logo.png or [1:v]).This is how you can tell overlay what inputs to use. You can omit [0:v][1:v], and overlay will still work, but it is recommended to be explicit and not rely on possibly unknown defaults

  • "-f flv"- output file format flv.

  • "pipe:1" - stdout

  • " | " - to connect two command together so that the output of one program becomes the input of the next program.

  • "-vf " - for creating filter graph on video

  • "drawtext" - Draw a text string or text from a specified file on top of a video

  • "text"- the text which we want to scroll.

  • "Fontfile" - the font of text

  • "y=((h)/2) " - y axis of the scrolling text, for middle h/2.

  • "x=(mod(5*n\,w+tw)-tw) "- For scrolling text we are setting x axis for each frame.

  • "fontcolor" - font color of text

  • "shadowx" - x axis shadow on text

  • "shadowy" - y axis shadow on text

  • "-vcodec" - video codec

  • "-vb" - video bitrate

  • "-acodec" - audio codec

  • "-ab " - audio bitrate

  • "-ar" - audio sampling rate

  • " -ac" - audio channel

  • "-muxdelay" - Set the maximum demux-decode delay in secs.


About Author

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Chandan Kumar Singh

Chandan is a bright Web Developer with expertise in Java and Spring framework and ORM tools Hibernate. He loves technologies like Blockchain and IoT.

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