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bbc / audiowaveform

C++ program to generate waveform data and render waveform images from audio files
https://waveform.prototyping.bbc.co.uk
GNU General Public License v3.0
1.94k stars 242 forks source link

Alpha channel support. #11

Closed alt- closed 10 years ago

alt- commented 10 years ago

Hi, it would be good to support alpha/transparency in the exported PNGs.

chrisn commented 10 years ago

Many thanks for this, it's a good change.

But, I'd lke to make this optional, for compatibility with the existing command line interface, and to generate smaller PNGs if the alpha channel is not used. I've merged your changes into a separate branch and updated as I've described. The new pull request is https://github.com/bbcrd/audiowaveform/pull/12. I hope this is OK.

Cheers,

Chris