Es6 refactor, more to come. Will be re-structuring v2f.js to handle multiple formats and better manage files in different locations.
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v2f.js
166
v2f.js
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@ -1,103 +1,119 @@
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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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/*jshint strict: true, esversion:6, node: true, asi: true*/
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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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'use strict'
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const exec = require('child_process').exec
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const fs = require('fs')
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const _tmp = './temp'
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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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//var frame_height = 7.61
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//var frame_height = 7.49
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let frame_height = 7.62
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let frame_padding = 0
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/*
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convert() - Turn video into sheet of images
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class Dimensions{
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constructor (film, dpi) {
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const IN = dpi / 25.4
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this.h = Math.round(film.frame_height * IN)
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this.w = Math.round(film.a * IN)
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this.o = Math.round(film.b * IN)
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this.dpi = dpi
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this.film = film
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}
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}
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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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* Turn video into sheet of images
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* @function
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* @param {String} path file path (absolute)
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* @param {Integer} dpi target printing dpi
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* @param {Integer} length strip length in frames
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*
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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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function convert (path, dpi) {
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const film = { frame_height: frame_height, a : 10.5, b : 16}
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const dim = new Dimensions(film, dpi)
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const file = path.split('/').pop()
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const loc = _tmp + '/'
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const 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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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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fs.mkdirSync(_tmp)
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exec(execStr, function (ste, std) {
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exec(execStr, (ste, std) => {
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if (ste) {
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return errorHandle(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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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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/** *
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* Stitch rendered frames into strips
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* @function
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* @param {String} loc Path of folder containing frames
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* @param {Object} dim Dimensions object
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*
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*/
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function stitch (loc, dim) {
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const length = Math.floor((11 * dim.dpi) / dim.h) - 1
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const width = Math.floor((8.5 * dim.dpi / dim.o)) - 1
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let page = 0
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let pageCount = 0
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let cmd = `find "${loc}" -type f -name "sequence_*.jpg"`
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function find_cb (ste, std) {
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if (ste) {
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return errorHandle(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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const frames = std.split('\n')
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let execStr = 'montage '
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function montage_cb (stee, stdd) {
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if (stee) {
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return errorHandle(ste);
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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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console.log(`Created page_${pageCount}.jpg!`)
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pageCount++
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if (pageCount === page) {
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console.log('Cleaning up...');
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setTimeout(function () {
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exec('find "' + loc + '" -type f -name "sequence_*.jpg" -delete', function () {
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fs.rmdirSync(_tmp);
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console.log('Done!');
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});
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}, 1000);
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setTimeout(() => {
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exec(`find "${loc}" -type f -name "sequence_*.jpg" -delete`, () => {
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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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for (let 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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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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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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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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