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import re |
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import base64 |
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def to_data_url(midi_filename): |
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""" This is crucial for Colab/WandB support. Thanks to Scott Hawley!! |
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https://github.com/drscotthawley/midi-player/blob/main/midi_player/midi_player.py |
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""" |
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with open(midi_filename, "rb") as f: |
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encoded_string = base64.b64encode(f.read()) |
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return 'data:audio/midi;base64,'+encoded_string.decode('utf-8') |
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def to_youtube_embed_url(video_url): |
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regex = r"(?:https:\/\/)?(?:www\.)?(?:youtube\.com|youtu\.be)\/(?:watch\?v=)?(.+)" |
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return re.sub(regex, r"https://www.youtube.com/embed/\1",video_url) |
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def create_html_from_midi(midifile): |
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html_template = """ |
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<!DOCTYPE html> |
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<html> |
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<head> |
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<title>Awesome MIDI Player</title> |
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<script src="https://cdn.jsdelivr.net/combine/npm/[email protected],npm/@magenta/[email protected]/es6/core.js,npm/focus-visible@5,npm/[email protected]"> |
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</script> |
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<style> |
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/* Background color for the section */ |
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#proll {{background-color:transparent}} |
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/* Custom player style */ |
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#proll midi-player {{ |
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display: block; |
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width: inherit; |
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margin: 4px; |
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margin-bottom: 0; |
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}} |
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#proll midi-player::part(control-panel) {{ |
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background: #D8DAE8; |
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border-radius: 8px 8px 0 0; |
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border: 1px solid #A0A0A0; |
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}} |
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/* Custom visualizer style */ |
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#proll midi-visualizer .piano-roll-visualizer {{ |
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background: #F7FAFA; |
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border-radius: 0 0 8px 8px; |
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border: 1px solid #A0A0A0; |
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margin: 4px; |
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margin-top: 2; |
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overflow: auto; |
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}} |
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#proll midi-visualizer svg rect.note {{ |
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opacity: 0.6; |
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stroke-width: 2; |
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}} |
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#proll midi-visualizer svg rect.note[data-instrument="0"] {{ |
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fill: #e22; |
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stroke: #055; |
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}} |
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#proll midi-visualizer svg rect.note[data-instrument="2"] {{ |
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fill: #2ee; |
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stroke: #055; |
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}} |
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#proll midi-visualizer svg rect.note[data-is-drum="true"] {{ |
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fill: #888; |
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stroke: #888; |
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}} |
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#proll midi-visualizer svg rect.note.active {{ |
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opacity: 0.9; |
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stroke: #34384F; |
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}} |
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</style> |
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</head> |
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<body> |
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<div> |
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<a href="{midifile}" target="_blank" style="font-size: 11px;">Download MIDI</a> <br> |
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<section id="proll"> |
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<midi-player src="{midifile}" sound-font="https://storage.googleapis.com/magentadata/js/soundfonts/sgm_plus" visualizer="#proll midi-visualizer"> |
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</midi-player> |
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<midi-visualizer src="{midifile}"> |
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</midi-visualizer> |
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</section> |
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</div> |
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</body> |
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</html> |
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""".format(midifile=midifile) |
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html = f"""<iframe style="width: 100%; height: 400px; overflow:auto" srcdoc='{html_template}'></iframe>""" |
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return html |
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def create_html_youtube_player(youtube_url): |
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youtube_url = to_youtube_embed_url(youtube_url) |
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html = f"""<iframe width="560" height="315" src='{youtube_url}' title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>""" |
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return html |
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