Changes between Version 9 and Version 10 of Waveform

Timestamp:

Mar 18, 2025, 1:19:20 PM (18 months ago)

Author:

danadam

Comment:

audacity-like look

Waveform

@@ -72 +72 @@
   "[0:a]showwavespic=s=640x320:colors=white[fg];[1:v][fg]overlay=format=auto" \
   -frames:v 1 out.png
+}}}
+
+== Audacity-like look ==
+
+[[Image(showwavespic_like_audacity.png)]]
+
+Using [https://ffmpeg.org/ffmpeg-filters.html#overlay overlay]:
+
+{{{
+size="640x240"
+bg_col="#c0c0c0"
+peak_col="#3232c8"
+rms_col="#6464dc"
+
+ffmpeg -i input.wav -f lavfi -i "color=c=${bg_col}:s=${size}" -filter_complex " \
+    [0:a] showwavespic=s=${size}:split_channels=1:colors=${peak_col}:filter=peak [pk]; \
+    [0:a] showwavespic=s=${size}:split_channels=1:colors=${rms_col} [rms], \
+    [pk] [rms] overlay=format=auto [nobg], [1:v] [nobg] overlay=format=auto" \
+    -frames:v 1 -update true output.png
 }}}