feat:完成文档
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README.md
19
README.md
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# h264-to-h265
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使用ffmpeg将264视频转换为h265视频
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使用 ffmpeg 将 264 视频转换为 h265 视频,支持 intel qsv 加速，nvdia cuda 加速。
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选择文件夹后，会递归处理此文件夹，子文件夹中的视频也会被处理。
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本人实测速度如下：
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- qsv: 10 倍速(使用 uhd750)
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- cuda: 16 倍速(使用 3060ti)
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## 使用方法
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前置条件：需要安装 ffmpeg，如需要硬件加速还要安装对应的显卡驱动。可参考[安装文档](https://juejin.cn/post/7034411980316213256)
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### node 代码执行。支持 windows/linux
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1. 安装 node 环境
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2. 修改 index.js 中要处理文件夹路径。
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3. 执行 node index.js 即可
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60
index.js
60
index.js
@ -2,16 +2,37 @@ const fs = require('fs-extra');
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const path = require('path');
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const cmd = require('child_process');
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const hardTypeSet = new Set("none", "qsv", "cuda");
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const supportVideoTypeSet = new Set("mkv", "mp4");
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async function deal (basePath) {
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/**
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*
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* @param {*} basePath 处理路径
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* @param {int} maxBitRate 最大码率,默认2500
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* @param {boolean} changeName 是否改名（true会将h264，x264变更为h265,或者在文件结尾插入h265,其他名称相同额文件也会处理）
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* @param {*} hardType 硬件加速类型，空/none：不使用加速；qsv:使用intel核显qsv加速；cuda:使用nvdia cuda加速
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* @returns
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*/
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async function deal (basePath, maxBitRate = 2500, changeName = false, hardType) {
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let hwType = hardType == 'qsv' ? "-hwaccel qsv" : hardType == 'cuda' ? "-hwaccel cuda" : "";
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let decodeType = hardType == 'qsv' ? "-c:v h264_qsv" : hardType == 'cuda' ? "-c:v hevc_qsv" : "";
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let encodeType = hardType == 'qsv' ? "-c:v h264_cuvid" : hardType == 'cuda' ? "-c:v hevc_nvenc" : "";
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if (!hardType && !hardTypeSet.has(hardType)) {
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throw new Error("不支持的加速方案:" + hardType + ",仅支持:空," + JSON.stringify(hardTypeSet));
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}
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let fileList = fs.readdirSync(basePath);
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for (let i in fileList) {
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let name = fileList[i];
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if (!name.endsWith('.mkv') && !name.endsWith('.mp4')) {
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let filePath = path.join(basePath, name);
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if (fs.statSync(filePath).isDirectory) {
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//如果为文件夹递归处理
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deal(filePath, maxBitRate, hardType);
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}
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if (!supportVideoTypeSet.has(name.substring(name.lastIndexOf(".") + 1))) {
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continue;
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}
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console.log("---------开始处理:" + name);
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let filePath = path.join(basePath, name);
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let res = JSON.parse(cmd.execSync(`ffprobe.exe "${filePath}" -show_streams -select_streams v -show_format -print_format json`, { encoding: 'utf-8' }));
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if (!res.format || !res.streams || res.streams.length == 0) {
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console.log("无法识别的格式：" + JSON.stringify(res));
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@ -28,7 +49,7 @@ async function deal (basePath) {
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continue;
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}
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bitRate = Math.round(parseInt(bitRate) / 1000);
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bitRate = bitRate > 2500 ? 2500 : bitRate;
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bitRate = bitRate > maxBitRate ? maxBitRate : bitRate;
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let newName;
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if (name.indexOf("h264") > -1) {
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newName = name.replace('h264', 'h265');
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@ -39,7 +60,7 @@ async function deal (basePath) {
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newName = name.substr(0, index) + ".h265" + name.substr(index);
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}
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let newFilePath = path.join(basePath, newName);
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let cmdStr = `ffmpeg.exe -hwaccel cuda -c:v h264_cuvid -i "${filePath}" -c:v hevc_nvenc -maxrate ${bitRate}K -c:a copy "${newFilePath}"`;
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let cmdStr = `ffmpeg.exe ${hwType} ${decodeType} -i "${filePath}" ${encodeType} -maxrate ${bitRate}K -c:a copy "${newFilePath}"`;
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console.log(cmdStr);
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let changeRes = cmd.execSync(cmdStr, { encoding: 'utf-8' });
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console.log(changeRes);
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@ -47,23 +68,26 @@ async function deal (basePath) {
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console.log("未知错误，文件转换失败");
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return;
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}
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//字幕，nfo文件重命名
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let namePart1 = name.substr(0, name.lastIndexOf('.'));
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let newNamePart1 = newName.substr(0, newName.lastIndexOf('.'));
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fileList.forEach(item => {
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if (item.startsWith(namePart1) && (item.endsWith('.nfo') || item.endsWith('.srt') || item.endsWith('.ass'))) {
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let temp = item.replace(namePart1, newNamePart1);
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if (item != temp) {
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fs.renameSync(path.join(basePath, item), path.join(basePath, temp));
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if (changeName) {
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//字幕，nfo文件重命名
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let namePart1 = name.substr(0, name.lastIndexOf('.'));
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let newNamePart1 = newName.substr(0, newName.lastIndexOf('.'));
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fileList.forEach(item => {
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if (item.startsWith(namePart1) && (item.endsWith('.nfo') || item.endsWith('.srt') || item.endsWith('.ass'))) {
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let temp = item.replace(namePart1, newNamePart1);
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if (item != temp) {
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fs.renameSync(path.join(basePath, item), path.join(basePath, temp));
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}
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}
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}
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})
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})
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}
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fs.removeSync(filePath);
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if (!changeName) {
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fs.moveSync(newFilePath, filePath);
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}
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}
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}
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(async () => {
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await deal("Z:/无耻之徒.Shameless.美版/season 09");
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await deal("Z:/无耻之徒.Shameless.美版/season 10");
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await deal("Z:/无耻之徒.Shameless.美版/season 11");
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await deal("要处理的文件夹", 2500, true, "cuda");
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})();
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2
run.bat
2
run.bat
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@REM 核显解码，nv独显编码,平均码率2.5m
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ffmpeg.exe -hwaccel cuda -c:v h264_cuvid -i ./Shameless.1080p.h264.s11e01.mkv -c:v hevc_nvenc -maxrate 2500K -c:a copy ./newShameless1.1080p.h264.s11e01.mkv
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ffmpeg.exe -i "./Shameless.1080p.h264.s11e01.mkv" -c:v hevc_qsv -c:a copy "./newQsvShameless.1080p.h264.s11e01.mkv" -x265-params lossless=1
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ffmpeg.exe -hwaccel cuvid -c:v h263_cuvid -i ./Shameless.1080p.h264.s11e01.mkv -c:v hevc_nvenc -b:v 2548k ./newShameless.1080p.h264.s11e01.mkv
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