Deprecate old capture module. Delete will follow.

This commit is contained in:
mmcwilliams 2019-02-08 13:13:10 -05:00
parent 4a86d5d441
commit 97ec076ec1
1 changed files with 224 additions and 0 deletions

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//Originally used to record actions for a digital transfer
//will depricating after extracting useful features from it
var capture = {},
eventEmitter,
fs = require('fs'),
exec = require('child_process').exec;
capture.active = false;
capture.store = {
events : [],
start : 0
};
capture.start = function (first) {
'use strict';
//reset storage
if (capture.active) {
capture.store.events = [];
capture.store.start = +new Date();
}
};
capture.end = function () {
'use strict';
if (capture.active) {
return capture.save();
} else {
return '';
}
};
capture.proj_start = function () {
'use strict';
var e = {
'start' : +new Date()
};
capture.store.events.push(e);
};
capture.proj_end = function () {
'use strict';
var e = {
'end' : +new Date()
};
capture.store.events.push(e);
};
//out-000001
capture.pad = function (frame, len) {
'use strict';
var pad = '',
ch = '0';
frame += '';
len = len - frame.length;
if (len <= 0) return frame;
while (true) {
if (len & 1) {
pad += ch;
}
len >>= 1;
if (len) {
ch += ch;
} else {
break;
}
}
return pad + frame;
};
capture.extract = function (input, output, good, real, neg) {
'use strict';
var tc = capture.report.timecode(good),
frame = capture.pad(real, 6),
neg_cmd = ' -vf lutrgb="r=negval:g=negval:b=negval" ',
cmd = 'ffmpeg -ss ' + tc + ' -i ' + input + '{{neg_cmd}}-vframes 1 ' + output + 'out-' + frame + '.tif';
if (neg) {
cmd = cmd.replace('{{neg_cmd}}', neg_cmd);
} else {
cmd = cmd.replace('{{neg_cmd}}', ' ');
}
console.log(cmd);
exec(cmd, function (err, std) {
console.log(err);
console.log(std);
});
};
capture.cp = function (input, output, good, real) {
'use strict';
var still = '';
};
capture.test = function () {
'use strict';
var i = -1,
len = 10,
intval,
next = function () {
i++
if (i === len) {
clearInterval(intval);
intval = null;
//console.dir(capture.store);
parse();
} else {
if (i % 2 === 0) {
capture.proj_start();
} else {
capture.proj_end();
}
}
},
parse = function () {
capture.report.parse(45, 0);
};
capture.start();
next();
intval = setInterval(next, 800);
};
capture.init = function () {
'use strict';
eventEmitter.on('arduino_send', function (cmd) {
if (capture.active
&& cmd.trim() === 'p') {
capture.proj_start();
}
});
eventEmitter.on('arduino_end', function (cmd) {
if (capture.active
&& cmd.trim() === 'p') {
capture.proj_end();
}
});
};
capture.save = function () {
'use strict';
var file = './data/transfer-',
time = +new Date(),
json = JSON.stringify(capture.store);
fs.writeFileSync(file + time + '.json', json, 'utf8');
return file + time + '.json';
};
//ffmpeg -f image2 -framerate 24 -start_number 090000 -i input_file_%06d.ext -c:v v210 -an output_file
//'-%06d
capture.report = {};
capture.report.parse = function (inmark, first, report, fps) {
'use strict';
var all = [],
output = {
good : [],
real : []
},
good = [],
real,
f,
frame,
last = -1,
i;
if (typeof fps === 'undefined') {
fps = 24;
}
f = 1000 / fps;
if (typeof report === 'undefined') {
report = capture.store;
}
if (typeof first === 'undefined') {
first = 0;
}
if (typeof inmark === 'undefined') {
inmark = 0;
}
//first clean frame
for (i = 0; i < report.events.length; i++) {
if (typeof report.events[i].end !== 'undefined') {
frame = (report.events[i].end - report.start) / f;
frame = Math.round(frame);
last = frame;
} else if (typeof report.events[i].start !== 'undefined') {
frame = (report.events[i].start - report.start) / f;
frame = Math.round(frame);
if (last !== -1) {
//console.log(last + '-' + frame);
all.push(capture.report.arr(last, frame));
}
}
}
good = all.map(function (arr) {
var center = Math.round(arr.length / 2);
return arr[center] + inmark;
});
real = output.map(function (val, i) {
return first + i;
});
output.good = good;
output.real = real;
return output;
};
capture.report.arr = function (start, end) {
'use strict';
var arr = [],
i;
for (i = start; i < end + 1; i++) {
arr.push(i);
}
return arr;
};
capture.report.timecode = function (frame) {
'use strict';
//00:03:00 no dropframe
var a = capture.pad(Math.floor((frame / 60) / 60), 2),
b = capture.pad(Math.floor(frame / 60), 2),
c = capture.pad(frame % 24);
return a + ':' + b + ':' + c;
};
capture.report.render = function () {
'use strict';
};
module.exports = function (ee) {
eventEmitter = ee;
return capture;
};