Replies: 19 comments 3 replies
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666 方便易用🙂 |
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编码工具信息,可以留空 |
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大神请问有没有视频教程 要是有视频看就容易学习点 |
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想问一下 -bsf:a aac_adtstoasc 这个代码起什么作用,如果ts格式转mp4 |
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不影响------------------ 原始邮件 ------------------
发件人: "notifications"<[email protected]>
发送时间: 2020年3月8日(星期天) 上午9:33
收件人: "nilaoda/Blog"<[email protected]>;
抄送: "fox0618"<[email protected]>;"Comment"<[email protected]>;
主题: Re: [nilaoda/Blog] 【分享】ffmpeg封装MP4批处理 (#2)
想问一下 -bsf:a aac_adtstoasc 这个代码起什么作用,如果ts格式转mp4
,在不改变编码的情况下直接copy 音轨和视频,后面需要添加这个代码吗,不添加有没有什么影响,期待解答
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字面意思,adts to asc |
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想请教一下作者,封装字幕的话字幕格式必须为utf—8吗,因为我试了其他格式有时候会失败,特意转换成这个格式然后没有提示错误。 顺便问一下, -movflags +faststart 这个代码起什么左右,封装多个字幕不添加此代码有什么影响吗 |
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还有一种视频无法内封字幕,mp4格式的,字幕utf8。命令行显示pts has no value application provided duration timestamp is out of range for mov/mp4... |
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加了可以在没有传输完毕的情况下播放mp4文件。否则必须传输完毕整个mp4才能播放 |
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请问这种封装成mp4格式的字幕能不能提取出来,因为想对字幕进行编辑重新封装 |
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ffmpeg -i xx.mp4 -map 0:s:0 out.srt |
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大佬如果把你这些代码直接写成一个可以执行软件的话,对于我们这种对代码一窍不通的小白来说就方便了很多。 |
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ffmpeg,bat批量处理封装 已经是最简单明确的了 |
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请教博主,按照这些参数封装成mkv的时候各轨道都丢失了一些信息(例如Bitrate、Size),想显示这些的话是需要额外添加其他命令吗? 代码如下: 封装成MP4格式后的mediainfo
封装成MKV格式后的mediainfo
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@normalx 这是正常现象 |
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临时解决办法——使用mkvtoolnix再过一遍,就有这些信息了🙂 |
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最终要mkv的话可以直接用mkvmerge的命令行混流 |
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大大 请教一下 可以直接用ffmpeg 编码吗 类似压制工具那种 把字幕快速嵌在里面的方法 有吗 |
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简要说明关键参数
其实命令大同小异,按需修改即可。下面是我常用的几种情况:
直接封装
音视频分离
封装插入外部DDP音轨
封装外部简体字幕
封装外部简繁字幕
国粤双语MP4混流单个MP4+字幕
国粤双语MP4混流单个MP4
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