31 lines
756 B
Markdown
31 lines
756 B
Markdown
# ffmpeg
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Everyone's favourite impossible-to-use tool
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Coordinates are counted from the top left corner like so:
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```
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0- +x
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+y
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```
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## Add text
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This puts the text in a transparent box with opacity 0.25.
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```
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ffmpeg -i input.mp4 -vf drawtext="fontfile=/usr/share/fonts/adobe-source-sans-pro/SourceSansPro-Regular.otf: text='THE TEXT': fontcolor=white: fontsize=250: box=1: boxcolor=black@0.25: boxborderw=5: x=(w-text_w)/2: y=(h-550)" -codec:a copy output.mp4
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```
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## Download a m3u8 playlist
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```
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ffmpeg -protocol_whitelist file,http,https,tcp,tls,crypto -i 'https://host/playlist.m3u8' -c copy video.mp4
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```
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## Add a black screen to some audio
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```
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ffmpeg -i string.mp3 -f lavfi -i color=black:s=640x480 -c:v libx264 -c:a aac -shortest output.mp4
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```
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