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Affirmer understands and acknowledges that Creative Commons is not a 120 | party to this document and has no duty or obligation with respect to 121 | this CC0 or use of the Work. 122 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | `slicing.lua` is a Lua script for mpv to cut fragments of the video in uncompressed RGB format which might be useful for video editing. 2 | 3 | #### Usage 4 | 5 | Make sure you have FFmpeg installed. Put `slicing.lua` to `~/.config/mpv/scripts/` or `~/.mpv/scripts/` directory to autoload the script or load it manually with `--script=`. 6 | 7 | Press `c` first time to mark the start of the fragment. Press it again to mark the end of the fragment and write it to the disk. Press `a` to toggle uncompressed audio capturing (default on). By default output videos will be placed in the home directory. 8 | 9 | You could change key bindings and all parameters of the output video by editing your `input.conf` and `lua-settings/slicing.conf`, see [slicing.lua](https://github.com/Kagami/mpv_slicing/blob/master/slicing.lua) for details. 10 | 11 | #### License 12 | 13 | mpv_slicing - Cut video fragments with mpv 14 | 15 | Written in 2015 by Kagami Hiiragi 16 | 17 | To the extent possible under law, the author(s) have dedicated all copyright and related and neighboring rights to this software to the public domain worldwide. This software is distributed without any warranty. 18 | 19 | You should have received a copy of the CC0 Public Domain Dedication along with this software. If not, see . 20 | -------------------------------------------------------------------------------- /slicing.lua: -------------------------------------------------------------------------------- 1 | local msg = require "mp.msg" 2 | local utils = require "mp.utils" 3 | local options = require "mp.options" 4 | 5 | local cut_pos = nil 6 | local copy_audio = true 7 | local o = { 8 | target_dir = "~", 9 | vcodec = "rawvideo", 10 | acodec = "pcm_s16le", 11 | prevf = "", 12 | vf = "format=yuv444p16$hqvf,scale=in_color_matrix=$matrix,format=bgr24", 13 | hqvf = "", 14 | postvf = "", 15 | opts = "", 16 | ext = "avi", 17 | command_template = [[ 18 | ffmpeg -v warning -y -stats 19 | -ss $shift -i "$in" -t $duration 20 | -c:v $vcodec -c:a $acodec $audio 21 | -vf $prevf$vf$postvf $opts "$out.$ext" 22 | ]], 23 | } 24 | options.read_options(o) 25 | 26 | function timestamp(duration) 27 | local hours = duration / 3600 28 | local minutes = duration % 3600 / 60 29 | local seconds = duration % 60 30 | return string.format("%02d:%02d:%02.03f", hours, minutes, seconds) 31 | end 32 | 33 | function osd(str) 34 | return mp.osd_message(str, 3) 35 | end 36 | 37 | function get_homedir() 38 | -- It would be better to do platform detection instead of fallback but 39 | -- it's not that easy in Lua. 40 | return os.getenv("HOME") or os.getenv("USERPROFILE") or "" 41 | end 42 | 43 | function log(str) 44 | local logpath = utils.join_path( 45 | o.target_dir:gsub("~", get_homedir()), 46 | "mpv_slicing.log") 47 | f = io.open(logpath, "a") 48 | f:write(string.format("# %s\n%s\n", 49 | os.date("%Y-%m-%d %H:%M:%S"), 50 | str)) 51 | f:close() 52 | end 53 | 54 | function escape(str) 55 | -- FIXME(Kagami): This escaping is NOT enough, see e.g. 56 | -- https://stackoverflow.com/a/31413730 57 | -- Consider using `utils.subprocess` instead. 58 | return str:gsub("\\", "\\\\"):gsub('"', '\\"') 59 | end 60 | 61 | function trim(str) 62 | return str:gsub("^%s+", ""):gsub("%s+$", "") 63 | end 64 | 65 | function get_csp() 66 | local csp = mp.get_property("colormatrix") 67 | if csp == "bt.601" then return "bt601" 68 | elseif csp == "bt.709" then return "bt709" 69 | elseif csp == "smpte-240m" then return "smpte240m" 70 | else 71 | local err = "Unknown colorspace: " .. csp 72 | osd(err) 73 | error(err) 74 | end 75 | end 76 | 77 | function get_outname(shift, endpos) 78 | local name = mp.get_property("filename") 79 | local dotidx = name:reverse():find(".", 1, true) 80 | if dotidx then name = name:sub(1, -dotidx-1) end 81 | name = name:gsub(" ", "_") 82 | name = name:gsub(":", "-") 83 | name = name .. string.format(".%s-%s", timestamp(shift), timestamp(endpos)) 84 | return name 85 | end 86 | 87 | function cut(shift, endpos) 88 | local cmd = trim(o.command_template:gsub("%s+", " ")) 89 | local inpath = escape(utils.join_path( 90 | utils.getcwd(), 91 | mp.get_property("stream-path"))) 92 | local outpath = escape(utils.join_path( 93 | o.target_dir:gsub("~", get_homedir()), 94 | get_outname(shift, endpos))) 95 | 96 | cmd = cmd:gsub("$shift", shift) 97 | cmd = cmd:gsub("$duration", endpos - shift) 98 | cmd = cmd:gsub("$vcodec", o.vcodec) 99 | cmd = cmd:gsub("$acodec", o.acodec) 100 | cmd = cmd:gsub("$audio", copy_audio and "" or "-an") 101 | cmd = cmd:gsub("$prevf", o.prevf) 102 | cmd = cmd:gsub("$vf", o.vf) 103 | cmd = cmd:gsub("$hqvf", o.hqvf) 104 | cmd = cmd:gsub("$postvf", o.postvf) 105 | cmd = cmd:gsub("$matrix", get_csp()) 106 | cmd = cmd:gsub("$opts", o.opts) 107 | -- Beware that input/out filename may contain replacing patterns. 108 | cmd = cmd:gsub("$ext", o.ext) 109 | cmd = cmd:gsub("$out", outpath) 110 | cmd = cmd:gsub("$in", inpath, 1) 111 | 112 | msg.info(cmd) 113 | log(cmd) 114 | os.execute(cmd) 115 | end 116 | 117 | function toggle_mark() 118 | local pos = mp.get_property_number("time-pos") 119 | if cut_pos then 120 | local shift, endpos = cut_pos, pos 121 | if shift > endpos then 122 | shift, endpos = endpos, shift 123 | end 124 | if shift == endpos then 125 | osd("Cut fragment is empty") 126 | else 127 | cut_pos = nil 128 | osd(string.format("Cut fragment: %s - %s", 129 | timestamp(shift), 130 | timestamp(endpos))) 131 | cut(shift, endpos) 132 | end 133 | else 134 | cut_pos = pos 135 | osd(string.format("Marked %s as start position", timestamp(pos))) 136 | end 137 | end 138 | 139 | function toggle_audio() 140 | copy_audio = not copy_audio 141 | osd("Audio capturing is " .. (copy_audio and "enabled" or "disabled")) 142 | end 143 | 144 | mp.add_key_binding("c", "slicing_mark", toggle_mark) 145 | mp.add_key_binding("a", "slicing_audio", toggle_audio) 146 | --------------------------------------------------------------------------------