FFmpeg 4.1.11
Since* 3.4
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2D Video Oscilloscope.

Useful to measure spatial impulse, step responses, chroma delays, etc.

It accepts the following parameters:

x

Set scope center x position.

y

Set scope center y position.

s

Set scope size, relative to frame diagonal.

t

Set scope tilt/rotation.

o

Set trace opacity.

tx

Set trace center x position.

ty

Set trace center y position.

tw

Set trace width, relative to width of frame.

th

Set trace height, relative to height of frame.

c

Set which components to trace. By default it traces first three components.

g

Draw trace grid. By default is enabled.

st

Draw some statistics. By default is enabled.

sc

Draw scope. By default is enabled.

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Examples

  • Inspect full first row of video frame.

    oscilloscope=x=0.5:y=0:s=1
  • Inspect full last row of video frame.

    oscilloscope=x=0.5:y=1:s=1
  • Inspect full 5th line of video frame of height 1080.

    oscilloscope=x=0.5:y=5/1080:s=1
  • Inspect full last column of video frame.

    oscilloscope=x=1:y=0.5:s=1:t=1