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108 lines
2.4 KiB
Ruby
108 lines
2.4 KiB
Ruby
=begin
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chop up two vods using splits as timestamps
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vertically stack each clip with the same name
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from each vod chopping
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cut a video with ffmpeg:
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ffmpeg -i input.mp4 -ss <time> -t <duration> -c:v copy -c:a copy output.mp4
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=end
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require "json"
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def chop(input1, time, dur, output="output.mkv")
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chop_cmd = "ffmpeg -y -threads 24 -i #{input1} -ss #{time} -to #{dur} -c:v copy -c:a copy #{output}.mkv"
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system(chop_cmd)
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end
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#need to make different commands for nvidia and x264
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def vstack(input1, input2, output="output.mkv")
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vstack_cmd = "ffmpeg -y " \
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"-threads 24 " \
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"-init_hw_device vaapi=foo:/dev/dri/renderD128 " \
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"-hwaccel vaapi " \
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"-hwaccel_output_format vaapi " \
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"-hwaccel_device foo " \
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"-i #{input1} " \
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"-hwaccel vaapi " \
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"-hwaccel_output_format vaapi " \
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"-hwaccel_device foo " \
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"-i #{input2} " \
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"-filter_hw_device foo " \
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"-c:v h264_vaapi " \
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"-filter_complex ' " \
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"[0:v]format=nv12|vaapi,hwupload[a], " \
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"[1:v]format=nv12|vaapi,hwupload[b], " \
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"[0:a][1:a]amix[a], " \
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"[a][b]vstack_vaapi=inputs=2[out]' " \
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"-map [out] -map [a] " \
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"#{output}"
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system(vstack_cmd)
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end
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=begin
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chop up the video by timestamp
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=end
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def chop_video(path)
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entries = Dir["#{path}/*"]
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split_file_path = entries.select {|e| e.end_with?(".json")}[0]
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video_file_path = entries.select {|e| e.end_with?(".mkv")}[0]
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split_file = File.open("#{Dir.pwd}/#{split_file_path}")
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data = JSON.load split_file
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game_title = data['title']
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splits = data['splits']
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time = "00:00:00"
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`mkdir -p clips`
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splits.each do |split|
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chop(video_file_path, time, split['time'], "clips/#{split['title'].split(" ").join("_").downcase}")
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time = split['time']
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end
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end
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=begin
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stack each video and save them to output/<name of video>
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=end
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def stack_video(p1, p2)
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e1 = Dir["#{p1}/clips/*"]
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`mkdir -p output`
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e1.each {|e| print "#{e}\n"}
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output = lambda { |e|
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o = e.split("#{p1}/clips/")[1]
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e2 = e.split("#{p1}")[1]
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vstack("#{p2}/#{e2}", e, "output/#{o}")
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}
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e1.map(&output)
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end
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=begin
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concatenate clips into final video
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=end
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def cat_video()
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entries = Dir["output/*"].map { |entry| "file #{entry}\n" }.join
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File.open("list.txt", "w") do |file|
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file.write entries
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end
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`ffmpeg -f concat -i list.txt -c copy output.mkv`
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end
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def concatenate_video(p1, p2)
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chop_video(p1)
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chop_video(p2)
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stack_video(p1, p2)
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cat_video()
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end
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concatenate_video(ARGV[0], ARGV[1])
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