Project as was hacked together
This commit is contained in:
Matt
commit
4cfc00e64b
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{
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"name": "video_to_page",
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"version": "1.0.0",
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"description": "Turn a video into a page of stills 16mm size",
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"main": "video_to_page.js",
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"scripts": {
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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"author": "mmcwilliams",
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"license": "MIT",
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"nexe" : {
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"output" : "../video_to_page_nexe/video_to_page",
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"runtime": {
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"ignoreFlags": true,
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"framework" : "nodejs",
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"version" : "5.0.0"
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}
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}
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}
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var exec = require('child_process').exec,
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fs = require('fs'),
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_tmp = './temp';
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//var frame_height = 7.61;
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//var frame_height = 7.49;
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var frame_height = 7.62;
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var frame_padding = 0;
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var frame_dimensions = function (dpi) {
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var h = Math.round(frame_height * (dpi / 25.4)),
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w = Math.round(10.5 * (dpi / 25.4)),
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o = Math.round(16 * (dpi / 25.4));
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return {h: h, w: w, o: o, dpi: dpi};
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};
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/*
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convert() - Turn video into sheet of images
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@param: path - file path (absolute)
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@param: dpi - target printing dpi
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@param: length - strip length in frames
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*/
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var convert = function (path, dpi) {
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'use strict';
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var dim = frame_dimensions(dpi),
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file = path.split('/').pop(),
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loc = _tmp + '/',
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execStr = 'avconv -i "' + path + '" -s ' + dim.w + 'x' + dim.h + ' -qscale 1 "' + loc + 'sequence_%04d.jpg"';
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console.log('Converting ' + file + '...');
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console.log('Exporting all frames with aspect ratio: ' + (dim.w / dim.h) + '...');
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fs.mkdirSync(_tmp);
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exec(execStr, function (ste, std) {
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if (ste) {
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return errorHandle(ste);
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}
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console.log('Frames exported successfully!');
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stitch(loc.substring(0, loc.length - 1), dim);
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});
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};
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var stitch = function (loc, dim) {
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'use strict';
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var length = Math.floor((11 * dim.dpi) / dim.h) - 1,
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width = Math.floor((8.5 * dim.dpi / dim.o)) - 1,
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page = 0,
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pageCount = 0,
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cmd = 'find "' + loc + '" -type f -name "sequence_*.jpg"',
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find_cb = function (ste, std) {
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if (ste) {
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return errorHandle(ste);
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}
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var frames = std.split('\n'),
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execStr = 'montage ',
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montage_cb = function (stee, stdd) {
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if (stee) {
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return errorHandle(ste);
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}
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console.log('Created page_' + pageCount + '.jpg!');
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pageCount++;
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if (pageCount === page) {
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console.log('Cleaning up...');
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setTimeout(function () {
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exec('find "' + loc + '" -type f -name "sequence_*.jpg" -delete', function () {
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fs.rmdirSync(_tmp);
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console.log('Done!');
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});
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}, 1000);
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}
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};
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for (var i = 0; i < frames.length; i++) {
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execStr += frames[i] + ' ';
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if ((i + 1) % (width * length) === 0 || i === frames.length - 1) {
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execStr += '\ -tile 1x' + length + ' -geometry ' + dim.w + 'x' + dim.h + '+' + Math.round((dim.o - dim.w) / 2) + '+0 miff:- |\ \nmontage - -geometry +0+0 -tile ' + width + 'x1 -density ' + dim.dpi + ' "./page_' + page + '.jpg"';
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exec(execStr, montage_cb);
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execStr = 'montage ';
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page++;
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}
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}
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};
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loc = _tmp;
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console.log('Stitching frames into sheets...');
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console.log('Sheets will contain ' + width + 'x' + length + ' frames...');
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exec(cmd, find_cb);
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};
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var errorHandle = function (err) {
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'use strict';
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if (process.argv.indexOf('-v') !== -1 || process.argv.indexOf('--verbose') !== -1){
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console.error(err);
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} else {
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console.error('Error running program. Run in verbose mode for more info (-v,--verbose)');
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}
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process.exit(1);
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};
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process.on('uncaughtException', function (err) {
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errorHandle(err);
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});
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if (typeof process.argv[2] === 'undefined') {
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console.error('No path to video defined');
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process.exit(1);
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}
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if (typeof process.argv[3] === 'undefined') {
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process.argv[3] = 300;
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console.log('Using default 300dpi');
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}
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convert(process.argv[2], process.argv[3]);
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/*
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INSTALLATION AND RUNNING
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*/
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//Install in this order to satisfy requirements: GCC required by MacPorts, etc.
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//Install Node http://nodejs.org/dist/v0.10.22/node-v0.10.22.pkg
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//Install GCC https://github.com/kennethreitz/osx-gcc-installer#option-1-downloading-pre-built-binaries
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//Install MacPorts http://www.macports.org/install.php
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//Install ImageMagick in terminal type "sudo port install ImageMagick"
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//Install avconv -see below
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/*
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Download and unzip http://libav.org/releases/libav-9.6.tar.gz
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in terminal type "cd " and drag in unzipped folder and hit enter
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in terminal copy "sudo port install yasm zlib bzip2 faac lame speex libogg libvorbis libtheora libvpx x264 XviD openjpeg15 opencore-amr freetype" (without quotes) hit enter
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in terminal copy "./configure \ --enable-gpl --enable-libx264 --enable-libxvid \ --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb \ --enable-nonfree --enable-libfaac \ --enable-libmp3lame --enable-libspeex --enable-libvorbis --enable-libtheora --enable-libvpx \ --enable-libopenjpeg --enable-libfreetype --enable-doc --enable-gnutls --enable-shared" hit enter
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(if that gives errors just use "./configure" and hit enter)
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in terminal copy "make && sudo make install" hit enter
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that will install it
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*/
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//run by going to terminal typing "node " dragging this script into the terminal, dragging the video into the terminal and adding a DPI value and hitting enter
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//the command should look something like this:
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//node /Users/stenzel/Desktop/video_to_page.js /Users/stenzel/Desktop/PaulRobeson/Paul\ Robeson\ discusses\ Othello.mp4 600
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//Get the absolute path of any file by dragging it into terminal and copying the results
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//Must be enclosed by ''
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//Will generate pages and frames in same folder as source video
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