danog/plotframes
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making it multiplatform

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This commit is contained in:
Rodrigo Polo MPW 2015-10-13 07:55:56 -06:00
parent 3feb549405
commit f1f5ef3ee8
2 changed files with 31 additions and 25 deletions
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55
cli.js
View File

@ -1,8 +1,11 @@
#!/usr/bin/env node #!/usr/bin/env node
var child = require('child_process'); var child = require('child_process'),
var dashdash = require('dashdash'); dashdash = require('dashdash'),
var temp = require('temp'); temp = require('temp'),
var split = require("split"); split = require("split"),
log = require('single-line-log').stderr,
isWin = /^win/.test(process.platform),
defterminal = isWin ? 'windows' : 'x11';
var options = [ var options = [
{ {
@ -29,9 +32,9 @@ var options = [
}, { }, {
names: ['terminal', 't'], names: ['terminal', 't'],
type: 'string', type: 'string',
help: 'Set the name of the terminal used by gnuplot. By default it is "x11". Must be used in conjunction with the output option. Check the gnuplot manual for the valid values.', help: 'Set the name of the terminal used by gnuplot. By default it is "'+defterminal+'". Must be used in conjunction with the output option. Check the gnuplot manual for the valid values.',
helpArg: 'png', helpArg: 'png',
default: 'x11' default: defterminal
} }
]; ];
@ -69,21 +72,10 @@ temp.track();
var clnl = false; var clnl = false;
function cutelog(str, nl){ function cutelog(str, nl){
if(nl){ if(nl){
if(process.stdin.isTTY){ log(str);
str = ''+str;
str = nl?str+'\r':str;
process.stderr.write(str);
clnl = true;
}
}else{ }else{
if(clnl){ log.clear();
if(process.stdin.isTTY){ log(str);
process.stdout.clearLine(); // clear current text
process.stdout.cursorTo(0); // move cursor to beginning of line
clnl = false;
}
}
process.stdout.write(str+'\n');
} }
} }
@ -133,6 +125,11 @@ function getDuration(input, cb){
process.on('exit', function() { process.on('exit', function() {
cli.kill(); cli.kill();
}); });
cli.on('error', function() {
console.log('Error running FFprobe, check if it is installed correctly and if it is included in the system environment path.');
process.exit(1);
});
} }
// Get frame bitrate // Get frame bitrate
@ -140,7 +137,7 @@ function getBitrate(input, time, cb){
var frame_count = 0; var frame_count = 0;
var streams = []; var streams = [];
var r; var r;
var r_frame = /(?:media_type\=(\w+)\n)(?:stream_index\=(\w+)\n)(?:pkt_pts_time\=(\d*.?\d*)\n)(?:pkt_size\=(\d+)\n)(?:pict_type\=(\w+))?/; var r_frame = /(?:media_type\=(\w+)\r?\n)(?:stream_index\=(\w+)\r?\n)(?:pkt_pts_time\=(\d*.?\d*)\r?\n)(?:pkt_size\=(\d+)\r?\n)(?:pict_type\=(\w+))?/;
var cli = child.spawn( var cli = child.spawn(
'ffprobe', [ 'ffprobe', [
@ -152,7 +149,7 @@ function getBitrate(input, time, cb){
],[] ],[]
); );
cli.stdout.pipe(split(/\[\/FRAME\]\n/)).on('data', function (data){ cli.stdout.pipe(split(/\[\/FRAME\]\r?\n/)).on('data', function (data){
if(r = r_frame.exec(data)){ if(r = r_frame.exec(data)){
frame_count++; frame_count++;
r[4] = (r[4]*8)/1000; r[4] = (r[4]*8)/1000;
@ -179,6 +176,11 @@ function getBitrate(input, time, cb){
process.on('exit', function() { process.on('exit', function() {
cli.kill(); cli.kill();
}); });
cli.on('error', function() {
console.log('Error running FFprobe, check if it is installed correctly and if it is included in the system environment path.');
process.exit(1);
});
} }
// Get file duration // Get file duration
@ -201,7 +203,7 @@ function createPlot(streams, cb){
for(var k in cm){ for(var k in cm){
if(streams[k]){ if(streams[k]){
streams[k].end(); streams[k].end();
scr += sep+'"'+streams[k].path+'" title "'+k+' frames" with impulses linecolor rgb "'+cm[k]+'"'; scr += sep+'"'+(streams[k].path).replace(/\\/g,'\\\\')+'" title "'+k+' frames" with impulses linecolor rgb "'+cm[k]+'"';
sep = ', '; sep = ', ';
} }
} }
@ -233,6 +235,11 @@ function createPlot(streams, cb){
process.on('exit', function() { process.on('exit', function() {
cli.kill(); cli.kill();
}); });
cli.on('error', function() {
console.log('Error running gnuplot, check if it is installed correctly and if it is included in the system environment path.');
process.exit(1);
});
} }
// Run // Run
@ -243,5 +250,3 @@ getDuration(opts.input, function(time){
}); });
}); });

1
package.json
View File

@ -27,6 +27,7 @@
"homepage": "https://github.com/rodrigopolo/plotframes#readme", "homepage": "https://github.com/rodrigopolo/plotframes#readme",
"dependencies": { "dependencies": {
"dashdash": "1.10.x", "dashdash": "1.10.x",
"single-line-log": "^1.0.0",
"split": "1.0.x", "split": "1.0.x",
"temp": "0.8.x" "temp": "0.8.x"
}, },