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I am trying to place a watermark.png image on a video with a fade-in effect. This is my command:

ffmpeg -i input_vid.mp4 -c:v libx264 -pix_fmt yuv420p -vf movie=watermark_3.png, scale=144:31 [watermark]; [in][watermark] overlay=5:H-h-15, fade=in:0:30:alpha=1[out] -s 180x320 -preset ultrafast -c:a copy out.mp4

But this makes the whole video fade in from black.. Any idea's?

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1 Answer 1

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0

Use

ffmpeg -i input_vid.mp4 \
      -vf "movie=watermark_3.png:loop=0.1,setpts=N/FRAME_RATE/TB,scale=144:31,format=rgba,fade=in:0:30:alpha=1[watermark]; \
           [in][watermark]overlay=5:H-h-15:shortest=1,scale=180x320[out]" \
      -c:v libx264 -pix_fmt yuv420p -preset ultrafast -c:a copy out.mp4

The fade has to be applied in the watermark chain to affect it only. The loop flag is set to a number below one, so that it loops the single image indefinitely. setpts ensures monotonically increasing timestamps.

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  • Thank you for the answer, but that makes the watermark disappear :/ any ideas?
    – SebSob
    Apr 17, 2016 at 10:57
  • It fades out? Never appears?
    – Gyan
    Apr 17, 2016 at 11:04
  • It never appears. When i remove fade=in:0:30:alpha=1 it appears, but without fade of course
    – SebSob
    Apr 17, 2016 at 11:12
  • Edited command.
    – Gyan
    Apr 17, 2016 at 11:25
  • It now stays in an infinite loop saying: Incoming frame (time:24.8) from link #1 n:266.000000 t:8.856576 pos:161470.00000 x:10.000000 xi:10 y:145.000000 yi:144 *** dropping frame 268 from stream 0 at ts 266 Stream finished, looping.
    – SebSob
    Apr 17, 2016 at 12:38

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