Add documentation. Add random sort method.
This commit is contained in:
parent
4619a1620c
commit
82a6235d65
359
frameloom
359
frameloom
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@ -10,7 +10,14 @@ const fs = require('fs-extra')
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let TMPDIR = os.tmpdir() || '/tmp'
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let TMPPATH
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/**
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* Shells out to execute a command with async/await.
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* Async wrapper to exec module.
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*
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* @param {string} cmd Command to execute
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*
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* @returns {Promise} Promise containing the complete stdio
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**/
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async function exec (cmd) {
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return new Promise((resolve, reject) => {
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return execRaw(cmd, (err, stdio, stderr) => {
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@ -19,9 +26,52 @@ async function exec (cmd) {
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})
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})
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}
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/**
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* Delays process for specified amount of time in milliseconds.
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*
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* @param {integer} ms Milliseconds to delay for
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*
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* @returns {Promise} Promise that resolves after set time
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**/
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async function delay (ms) {
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return new Promise((resolve, reject) =>{
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return setTimeout(resolve, ms)
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})
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}
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/**
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* Pads a numerical value with preceding zeros to make strings same length.
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*
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* @param {integer} i Number to pad
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* @param {integer} max (optional) Maximum length of string to pad to
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*
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* @returns {string} Padded number as a string
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**/
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function zeroPad (i, max = 5) {
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let len = (i + '').length
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let str = i + ''
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for (let x = 0; x < max - len; x++) {
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str = '0' + str
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}
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return str
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}
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/**
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* Shuffles an array into a random state.
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*
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* @param {array} a Array to randomize
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**/
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function shuffle (a) {
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for (let i = a.length; i; i--) {
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let j = Math.floor(Math.random() * i);
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[a[i - 1], a[j]] = [a[j], a[i - 1]]
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}
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}
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/**
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* Clears the temporary directory of all files.
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* Establishes a directory if none exists.
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**/
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async function clear () {
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let exists
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try {
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exists = await fs.exists(TMPPATH)
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} catch (err) {
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@ -29,9 +79,9 @@ async function clear () {
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}
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if (exists) {
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console.log(`Clearing tmp directory ${TMPPATH}`)
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console.log(`Clearing temp directory "${TMPPATH}"`)
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try {
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await exec(`rm -r "${TMPPATH}"`)
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await fs.rmdir(TMPPATH)
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} catch (err) {
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//suppress error
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}
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@ -39,19 +89,31 @@ async function clear () {
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try {
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await fs.mkdir(TMPPATH)
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} catch (Err) {
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console.error(err);
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} catch (err) {
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if (err.code !== 'EEXIST') {
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console.error(err)
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}
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}
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}
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async function frames (video, order) {
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/**
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* Exports all frames from video. Appends number to the string
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* to keep frames in alternating order to be quickly stitched together
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* or re-sorted.
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*
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* @param {string} video String representing path to video
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* @param {integer} order Integer to be appended to pathname of file
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*
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* @returns {string} String with the export order, not sure why I did this
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**/
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async function frames (video, order, avconv) {
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let ext = 'tif'
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let exe = avconv ? 'avconv' : 'ffmpeg'
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let tmpoutput
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let cmd
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tmpoutput = path.join(TMPPATH, `export-%05d_${order}.${ext}`)
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cmd = `ffmpeg -i "${video}" -compression_algo raw -pix_fmt rgb24 "${tmpoutput}"`
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cmd = `${exe} -i "${video}" -compression_algo raw -pix_fmt rgb24 "${tmpoutput}"`
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console.log(`Exporting ${video} as single frames...`)
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@ -61,46 +123,69 @@ async function frames (video, order) {
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console.error('Error exporting video', err)
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return process.exit(3)
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}
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return path.join(TMPPATH, `export_${order}`)
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}
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/**
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* Re-arranges the frames into the order specified in the pattern.
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* Calls `patternSort()` to perform the rename and unlink actions
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*
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* @param {array} pattern Pattern of the frames per input
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* @param {boolean} realtime Flag to turn on or off realtime behavior (drop frames / number of vids)
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**/
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async function weave (pattern, realtime, random) {
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let frames
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let old
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let seqFile
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let seq
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let alt = false
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function zeroPad (i, max = 5) {
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let len = (i + '').length
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let str = i + ''
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for (let x = 0; x < max - len; x++) {
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str = '0' + str
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}
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return str
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}
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async function reorder (pattern, realtime) {
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let frames;
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let old;
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let seqFile;
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let seq;
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console.log('Weaving frames...')
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try {
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frames = await fs.readdir(TMPPATH)
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} catch (err) {
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console.error('Error reading tmp directory', err)
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}
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console.dir(frames)
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//console.dir(frames)
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frames = frames.filter (file =>{
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if (file.indexOf('.tif') !== -1) return true
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});
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//other patterns
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})
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try {
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seq = await patternSort(frames, pattern, realtime)
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} catch (err) {
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console.error('Error sorting frames')
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for (let el of pattern) {
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if (el !== 1) alt = true
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}
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console.dir(seq)
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//
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}
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function groupAlt (list, pattern, realtime) {
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if (random){
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try {
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seq = await randomSort(frames, realtime)
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} catch (err) {
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console.error('Error sorting frames')
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}
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} else if (!alt) {
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try {
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seq = await standardSort(frames, pattern, realtime)
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} catch (err) {
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console.error('Error sorting frames')
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}
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} else if (alt) {
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try {
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seq = await altSort(frames, pattern, realtime)
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} catch (err) {
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console.error('Error sorting frames')
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}
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}
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//console.dir(seq)
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}
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/**
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* Alternate frame sorting method.
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*
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* @param {array} list List of frames to group
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* @param {array} pattern Array representing pattern
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* @param {boolean} realtime Flag to group with "realtime" behavior
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**/
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async function altSort (list, pattern, realtime) {
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let groups = []
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let newList = []
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let frameCount = 0
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@ -126,7 +211,7 @@ function groupAlt (list, pattern, realtime) {
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console.log(`Renaming ${list[i]} -> ${newName}`);
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try {
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//fs.renameSync(oldPath, newPath)
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//await fs.move(oldPath, newPath, { overwrite: true })
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newList.push(newName);
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} catch (err) {
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console.error(err);
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@ -138,99 +223,169 @@ function groupAlt (list, pattern, realtime) {
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}
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return newList
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}
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async function patternSort (list, pattern, realtime = false) {
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/**
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* Standard frame sorting method.
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*
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* @param {array} list List of frames to group
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* @param {array} pattern Array representing pattern
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* @param {boolean} realtime Flag to group with "realtime" behavior
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**/
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async function standardSort (list, pattern, realtime) {
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let frameCount = 0
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let stepCount
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let step
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let skipCount
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let skip
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let alt
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let ext = path.extname(list[0])
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let oldPath
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let newName
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let newPath
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let newList = []
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for (let el of pattern) {
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if (el !== 1) alt = true
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}
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if (realtime) {
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skip = false
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skipCount = pattern.length + 1
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}
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if (!alt) {
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for (let i = 0; i < list.length; i++) {
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if (realtime) {
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skipCount--;
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if (skipCount === 0) {
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skip = !skip;
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skipCount = pattern.length
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}
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for (let i = 0; i < list.length; i++) {
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if (realtime) {
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skipCount--;
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if (skipCount === 0) {
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skip = !skip;
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skipCount = pattern.length
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}
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}
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oldPath = path.join(TMPPATH, list[i])
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if (skip) {
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console.log(`Skipping ${list[i]}`)
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try {
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await fs.unlink(oldPath)
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} catch (err) {
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console.error(err)
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}
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continue
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}
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newName = `./render_${zeroPad(frameCount)}${ext}`
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newPath = path.join(TMPPATH, newName)
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console.log(`Renaming ${list[i]} -> ${newName}`)
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oldPath = path.join(TMPPATH, list[i])
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if (skip) {
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console.log(`Skipping ${list[i]}`)
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try {
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await fs.rename(oldPath, newPath)
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newList.push(newName)
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await fs.unlink(oldPath)
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} catch (err) {
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console.error(err)
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}
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frameCount++
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continue
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}
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} else {
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newList = groupAlt(list, pattern, realtime)
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newName = `./render_${zeroPad(frameCount)}${ext}`
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newPath = path.join(TMPPATH, newName)
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console.log(`Renaming ${list[i]} -> ${newName}`)
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try {
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await fs.move(oldPath, newPath, { overwrite: true })
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newList.push(newName)
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frameCount++
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} catch (err) {
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console.error(err)
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return process.exit(10)
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}
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}
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return newList
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}
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/**
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* Ramdomly sort frames for re-stitching.
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*
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* @param {array} list List of frames to group
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* @param {array} pattern Array representing pattern
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* @param {boolean} realtime Flag to group with "realtime" behavior
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**/
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async function randomSort (list, pattern, realtime) {
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let frameCount = 0
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let ext = path.extname(list[0])
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let oldPath
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let newName
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let newPath
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let newList = []
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let removeLen = 0
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let remove = []
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async function render (output) {
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let exp = path.join(TMPPATH, `render_%05d.tif`)
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shuffle(list)
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if (realtime) {
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removeLen = Math.floor(list.length / pattern.length)
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remove = list.slice(removeLen, list.length)
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list = list.slice(0, removeLen)
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console.log(`Skipping extra frames...`)
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for (let i = 0; i < remove.length; i++) {
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oldPath = path.join(TMPPATH, remove[i])
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console.log(`Skipping ${list[i]}`)
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try {
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await fs.unlink(oldPath)
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} catch (err) {
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console.error(err)
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}
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}
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}
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for (let i = 0; i < list.length; i++) {
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oldPath = path.join(TMPPATH, list[i])
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newName = `./render_${zeroPad(frameCount)}${ext}`
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newPath = path.join(TMPPATH, newName)
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console.log(`Renaming ${list[i]} -> ${newName}`)
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try {
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await fs.move(oldPath, newPath, { overwrite : true })
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newList.push(newName)
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} catch (err) {
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console.error(err)
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}
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frameCount++
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}
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return newList
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}
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/**
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* Render the frames into a video using ffmpeg.
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*
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* @param {string} output Path to export the video to
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**/
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async function render (output, avconv) {
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//process.exit()
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let frames = path.join(TMPPATH, `render_%05d.tif`)
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let exe = avconv ? 'avconv' : 'ffmpeg'
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let resolution = '1920x1080'
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let h264 = `-vcodec libx264 -g 1 -crf 25 -pix_fmt yuv420p`
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let prores = `-c:v prores -profile:v 3 -c:a pcm_s16le - g 1`
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let prores = `-c:v prores_ks -profile:v 3`
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let format = (output.indexOf('.mov') !== -1) ? prores : h264
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const cmd = `ffmpeg -r 24 -f image2 -s ${resolution} -i ${exp} ${format} -y ${output}`
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const cmd = `${exe} -r 24 -f image2 -s ${resolution} -i ${frames} ${format} -y ${output}`
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console.log(`Exporting video ${output}`)
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console.log(cmd)
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/*try {
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await exec(`ls "${TMPPATH}"`)
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} catch (err) {
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console.log(err)
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}*/
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try {
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await exec(cmd)
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} catch (err) {
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console.error(err)
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}
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}
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/**
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* Parses the arguments and runs the process of exporting, sorting and then
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* "weaving" the frames back into a video
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**/
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async function main (arg) {
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let input = arg.input.split(':')
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let output = arg.output;
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let pattern = [];
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let realtime = false;
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let output = arg.output
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let pattern = []
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let realtime = false
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let avconv = false
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let random = false
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console.time('frameloom')
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if (input.length < 2) {
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console.error('Must provide more than 1 input');
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console.error('Must provide more than 1 input')
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return process.exit(1)
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}
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@ -239,6 +394,14 @@ async function main (arg) {
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return process.exit(2)
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}
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if (arg.random) {
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random = true
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}
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if (arg.avconv) {
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avconv = true
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}
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if (arg.pattern) {
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pattern = arg.pattern.split(':')
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pattern = pattern.map(el =>{
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@ -257,7 +420,7 @@ async function main (arg) {
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try {
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await clear()
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} catch (err) {
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console.error(err);
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console.error(err)
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return process.exit(3)
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}
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@ -265,36 +428,39 @@ async function main (arg) {
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for (let i = 0; i <input.length; i++) {
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try {
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await frames(input[i], i)
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await frames(input[i], i, avconv)
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} catch (err) {
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console.error(err);
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console.error(err)
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return process.exit(4)
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}
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}
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try {
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await reorder(pattern, realtime)
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await weave(pattern, realtime, random)
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} catch (err) {
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console.error(err)
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return process.exit(5)
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}
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await delay(2000)
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try {
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await render(output, avconv)
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} catch (err) {
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console.error(err)
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return process.exit(6)
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}
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try {
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await render(output)
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//await clear()
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} catch (err) {
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console.error(err)
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}
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try {
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await clear()
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} catch (err) {
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console.error(err);
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return process.exit(3)
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return process.exit(7)
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}
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console.timeEnd('frameloom')
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}
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program
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.version('1.0.0')
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.option('-i, --input [files]', 'Specify input videos with paths seperated by colon')
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@ -303,6 +469,7 @@ program
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.option('-r, --realtime', 'Specify if videos should preserve realtime speed')
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.option('-t, --tmp [dir]', 'Specify tmp directory for exporting frames')
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.option('-a, --avconv', 'Specify avconv if preferred to ffmpeg')
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.parse(process.argv);
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.option('-R, --random', 'Randomize frames. Ignores pattern if included')
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.parse(process.argv)
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main(program)
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