[FFmpeg-user] how to edit metadata in flv file

[Steven Liu]

2016-11-25 20:28 GMT+08:00 qw <applemax82 at 163.com>:

> Hi,
>
>
> I have two questions about ffmpeg usage:
>
>
> 1)
> How to edit metadata in flv file by using ffmpeg, such as changing some
> key's value in flv file's metadata tag?
>
yes, you are right

>
>
> 2)
> Normally, there are two streams in flv files, i.e. audio and video
> streams. I want to keep some part empty of in audio or video stream, which
> mean there only exist video or audio stream in that part. How to produce
> that kind of flv file by using ffmpeg?
>
Do you mean "adelay" filter?  or set the video or audio data 0.

>
>
> Thanks!
>
>
> Regards
>
>
> Andrew
>
>
>
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