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Add more options for the background #7

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Phoenix616
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This adds more options to specify both the background color as well as an image as the background. Also additionally the ability to set the opacity of the bars.

Options added:

  -o OPACITY            The opacity of the waveform on the background.
  -b COLOR              Set background color. Default is black.
  -i IMAGE              Set background image.
  -C COORDS             Set the center of the bars relative to the image if used.

@godomac
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godomac commented Oct 2, 2023

It would be awesome to have the background color of the video transparent. Is this possible?

@Phoenix616
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@godomac mp4 does not support transparent background colors. That would require a different raw video format like AVI or QuickTime (.mov). I suggest opening a feature request, that's way out of scope of this PR.

seewav.py Outdated Show resolved Hide resolved
@@ -130,17 +147,18 @@ def draw_env(envs, out, fg_colors, bg_color, size):
pad = pad_ratio * width
delta = 2 * pad + width

ctx.translate(*offset)
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why do you need this offset here ?

seewav.py Outdated Show resolved Hide resolved
image = image.resize(image.width + 1, image.height)
if image.height % 2 is 1:
image = image.resize(image.width, image.height + 1)
output_size = image.width, image.height
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I'm not sure we should replace the output size with tjhe image size, maybe we should rather keep the video width and height controlled by the params, and resize the image given as background ? or maybe add a flag --use_background_image_size

Passing image size as tuple & fixing SyntaxWarning on literal identity check
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4 participants