[HN Gopher] Writing an MP4 Muxer for Fun and Profit
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       Writing an MP4 Muxer for Fun and Profit
        
       Author : skrrtww
       Score  : 28 points
       Date   : 2024-07-13 02:04 UTC (5 days ago)
        
 (HTM) web link (obsproject.com)
 (TXT) w3m dump (obsproject.com)
        
       | Lammy wrote:
       | > moof (Movie Fragment Box)
       | 
       | Very cute easter egg. Moof is what dogcows say:
       | http://clarus.chez-alice.fr/history.php
        
       | karolist wrote:
       | > Except there is no profit, only pain
       | 
       | I have 20 years or professional experience and my conclusion, if
       | someone asked, what IT boils down to: pain.
       | 
       | The pain is what filters who can succeed and who fail. Can you
       | endure hunting a bug for 7 hours in your chair? Can you fix
       | problem after problem to get a system running? Everything that
       | can fail, will fail, and you have to deal with it.
        
       | Retr0id wrote:
       | > It kind of hurts that several days of work and research can be
       | summed up in a couple paragraphs, but that's what the "pain" part
       | in the subtitle is for.
       | 
       | Having recently written my own fragmented-MP4 remuxing library, I
       | felt this pain too, and my soon-to-be-published writeup has very
       | similar things to say about the ISO's paywalling practices.
       | 
       | I think one of the hardest parts of ISO-BMFF, aside from spec
       | availability, is that it's pretty hard to implement "cleanly",
       | making existing code confusing to use as reference. (My own
       | implementation is certainly not clean either)
        
       | dylan604 wrote:
       | "The new MP4 output now also supports multiple video tracks"
       | 
       | MP4 has been able to have multiple video streams for quite some
       | time. One of the very first advanced MP4 authoring tools I saw in
       | the early 00s allowed for this, and we used it to make a few
       | advanced files to demo the "new" MP4 format. Much like multi-
       | angle DVDs, this was a niche feature that did not gain very much
       | attraction. I could see why someone not around at that time might
       | think this is a new feature, but it's not
        
         | Retr0id wrote:
         | New to OBS.
        
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       (page generated 2024-07-18 23:01 UTC)