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• How to tag metadata m4v files using FFmpeg

  21 mai 2019, par jazz-e

  So I’m trying to tag metadata to a video file m4v from the filename. However, I can’t seem to find the answer in the man -h page and everything online shows how to pull the metadata from m4v.

  I’ve looked here on StackOverflow and also online for the answer and most are answers on pulling the metadata from the m4v file but nothing on tagging the file (other than stripping out metadata). I found this http://jonhall.info/create_id3_tags_using_ffmpeg/ regarding tagging an mp3 file, which I tried the syntax and it fails.

  Here’s the mp3 syntax I tried subbing out mp3 to m4v

  ffmpeg32 -i in.m4v -metadata title="The Title You Want" out.m4v

  Also tried the following as well

  ffmpeg -i "$filedir$name" -metadata title="The Title You Want" -c:v copy -c:a copy "$filedir$newname"

  This command works for removing the metadata from the file

  ffmpeg -i "$filedir$name" -map_metadata -1 -c:v copy -c:a copy "$filedir$newname"

  The error I usually get a syntax error.

  Any help much appreciated

• Watching a livestream that is being ripped by ffmpeg to disk - file updating problem

  22 mai 2021, par merlin

  I am automatically recording daily tv news with ffmpeg, so I can watch them later.

  


  ffmpeg -i https://mcdn.daserste.de/daserste/de/master.m3u8 -c copy Tagesschau.mkv


  


  This works. But let's say ffmpeg recorded for 2 minutes and I open the currently saved file and begin to watch the video stops after some time.
It doesn't continue playing (but ffmpeg is still recording so there must be more video).

  


  Strange thing is even by closing and reopening the file I don't see the new content. Sometimes I have to wait 1-2 minutes till the new content shows up. But in the file manager I see the file is growing in size continuous.

  


  But when I copy/paste the file e.g. in the same directory and reopen the file I can immediately see the complete video content up to date recorded.

  


  Maybe it has to do with file system write buffer ? I tried on ZFS and ext4 (mounted on a samba share). By copy/paste I "trigger" the file system to update the file content ?

  


  Is there a workaround so when I start watching it will play without stopping ?

  


• Installing a PHP Extension in WAMP - Idiot's Walkthrough ?

  16 mars 2015, par PeregrineStudios

  I’ve been coding with PHP for a while now, but haven’t needed to look at extensions - until now. These are brand-spanking new to me and while I’ve looked for, and found, other tutorials, many of them are using language that I don’t understand, or telling me to do things I don’t know how - I guess they assume most readers are a little more intelligent than I am !

  So : I need to install the extension FFmpeg (here : http://ffmpeg-php.sourceforge.net/). I’m currently developing on a local wamp server. PHP version 5.5.12, Apache version 2.4.9. At some point I’d like to put whatever I’ve done up on a live server, but that can wait.

  I have exactly, precisely, zero understanding of how to do this. I don’t even know what exactly I’d need to download, or where to put it.

  Is there anyone willing to take the time to tell me how to do this ? A real ’idiot’s guide’, breaking down each and every step for someone who’s never done this or really even anything similar before now.

  Thanks so much in advance for any assistance anyone can offer !

  EDIT : Firstly, thanks for down-voting someone for trying to learn. Appreciate it. Secondly, there was an answer here before, and now it’s gone. What gives ? Was it deleted ? Why ?

  EDIT AGAIN : I managed to find a cached version of the page with the answers still on it. For anyone else who wants the YouTube video one of the comments directed me to, here it is : https://www.youtube.com/watch?v=KIq85Eq28PM - still not sure why it was outright removed without anything else being answered in its place.