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[-]移除多的> #2

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ccf273b
[-]移除多的>
zxsean Apr 4, 2018
8a241f9
[-]移除信息.
zxsean Apr 4, 2018
5a418e1
[+]配置和一键运行.
zxsean Apr 8, 2018
492113d
[*]修改默认尺寸,同时会在视频尺寸和默认尺寸之前取小值.
zxsean Apr 8, 2018
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53 changes: 48 additions & 5 deletions controller/render.js
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Original file line number Diff line number Diff line change
@@ -1,9 +1,14 @@
const fs = require('fs')
const md5 = require('md5')
const path = require('path')
const ffmpeg = require('ffmpeg')
const rootPath = path.resolve(__dirname + "/..")
var execSync = require('child_process').execSync;

// 默认大小
const __SIZE = 500;

// 生成对应字幕
function renderAss(templateName, sentences, filename) {
outputFilePath = "/public/cache/" + filename + ".ass"
templatePath = rootPath + "/public/templates/" + templateName + "/template.ejs"
Expand All @@ -12,6 +17,7 @@ function renderAss(templateName, sentences, filename) {
renderedAssText = require('ejs').render(template, {
'sentences': sentences
})

fs.writeFileSync(rootPath + outputFilePath, renderedAssText)
return outputFilePath
}
Expand All @@ -20,14 +26,51 @@ function makeGifWithFfmpeg(templateName, sentences, filename) {
assPath = renderAss(templateName, sentences, filename)
gifPath = "./public/cache/" + filename
videoPath = "./public/templates/" + templateName + "/template.mp4"
console.log(assPath, gifPath, videoPath)
var cmd = "ffmpeg -i " + videoPath + " -r 8 -vf ass=." + assPath + ",scale=300:-1 -y " + gifPath
console.log(cmd);

// 使用默认尺寸
var _size = __SIZE;

// 动态获取尺寸
try {
execSync(cmd);
var process = new ffmpeg(videoPath);
process.then(function (video) {
// 视频尺寸和默认尺寸取小
if(video.metadata.video.resolution.w < __SIZE)
{
_size = video.metadata.video.resolution.w;
}

console.log("视频尺寸:" + video.metadata.video.resolution.w);
}, function (err) {
console.log('Error: ' + err);
}).then(function () {
console.log(assPath, gifPath, videoPath)
var cmd = "ffmpeg -i " + videoPath + " -r 8 -vf ass=." + assPath + ",scale=" + _size + ":-1 -y " + gifPath
console.log(cmd);
try {
execSync(cmd);

console.log("生成gif成功")
} catch (e) {
console.log(e);
}
});
} catch (e) {
console.log(e);
console.log(e.code);
console.log(e.msg);
}

// 移动上去
// console.log(assPath, gifPath, videoPath)
// var cmd = "ffmpeg -i " + videoPath + " -r 8 -vf ass=." + assPath + ",scale=" + __SIZE + ":-1 -y " + gifPath
// console.log(cmd);
// try {
// execSync(cmd);

// console.log("生成gif成功")
// } catch (e) {
// console.log(e);
// }
}

function renderGif(templateName, sentences) {
Expand Down
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