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Re: File type for .m4a files

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In message <5cb05d68febob@sick-of-spam.invalid>
          Bob Latham <bob@sick-of-spam.invalid> wrote:

> In article <51a44bb05c.jmb@jmc.bruck.orange.fr>,
>    Jean-Michel <jmc.bruck@orange.fr> wrote:
>> In message <5cb0268addbob@sick-of-spam.invalid>
>>           Bob Latham <bob@sick-of-spam.invalid> wrote:

>>> Can't find a RISCOS mime mapping for .m4a files. These are what you
>>> used to get for iTunes file downloads. No mention in Tim Hill's list.

>>> Any ideas?

>>> Thanks.
>> I have an mp4 audio file, which is played automatically by Mplayer, but
>> you can use it with KinoAmp

>> from !boot file for Mplayer.
>> if "<File$Type_FB2>" = "" then Set File$Type_FB2 "AVI"
>> Set Alias$@RunType_FB2 Run <MPlayer$Dir>.!Run %%*0
>> Set File$Type_A63 "MKV"
>> Set Alias$@RunType_A63 Run <MPlayer$Dir>.!Run %%*0
>> Set File$Type_A64 "MP4"
>> Set Alias$@RunType_A64 Run <MPlayer$Dir>.!Run %%*0

>> In my mimefile there is:
>> # Media type 'Video'
>> video/x-msvideo  AVI  fb2 .avi
>> video/mp4               MP4             a64     .mp4
>> video/x-matroska        MKV             a63     .mkv


> I'm sorry to be dim and slow but how exactly does the above tell my
> RISCOS computer what file type an .m4a file on my NAS should have? I
> can't see m4a mentioned anywhere.

> Thanks.

> Bob.
from https://fileinfo.com/extension/m4a

MPEG-4 files that store video bear the .mp4 file extension (.MP4 files). 
However, if the MPEG-4 file only stores audio, it is saved with the .m4a 
extension, which stands for "MPEG-4 Audio." This name change helped 
distinguish between MPEG-4 video files and MPEG-4 audio-only files.

Ihave tested m4a from here 
https://getsamplefiles.com/sample-audio-files/m4a

just changed the type to mp4 an Mplayer plays it, not AMplayer.


-- 
Jean-Michel

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Thread

File type for .m4a files Bob Latham <bob@sick-of-spam.invalid> - 2026-02-24 11:57 +0000
  Re: File type for .m4a files Jean-Michel <jmc.bruck@orange.fr> - 2026-02-24 19:43 +0100
    Re: File type for .m4a files Bob Latham <bob@sick-of-spam.invalid> - 2026-02-24 21:57 +0000
      Re: File type for .m4a files Jean-Michel <jmc.bruck@orange.fr> - 2026-02-24 23:39 +0100
        Re: File type for .m4a files Bob Latham <bob@sick-of-spam.invalid> - 2026-02-25 10:07 +0000
          Re: File type for .m4a files Sebastian Barthel <naitsabes@freenet.de> - 2026-02-25 11:54 +0000
            Re: File type for .m4a files Bob Latham <bob@sick-of-spam.invalid> - 2026-02-25 13:41 +0000
              Re: File type for .m4a files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2026-02-25 16:42 +0000
                Re: File type for .m4a files Bob Latham <bob@sick-of-spam.invalid> - 2026-02-25 18:30 +0000
                Re: File type for .m4a files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2026-02-25 22:08 +0000
                Re: File type for .m4a files Bob Latham <bob@sick-of-spam.invalid> - 2026-02-26 09:03 +0000
                Re: File type for .m4a files Sebastian Barthel <naitsabes@freenet.de> - 2026-02-26 13:53 +0000
                Re: File type for .m4a files David Higton <dave@davehigton.me.uk> - 2026-02-26 17:09 +0000
                Re: File type for .m4a files Steve Fryatt <news@stevefryatt.org.uk> - 2026-02-26 23:27 +0000
                Re: File type for .m4a files Jean-Michel <jmc.bruck@orange.fr> - 2026-02-27 08:38 +0100
                Re: File type for .m4a files Bob Latham <bob@sick-of-spam.invalid> - 2026-03-04 11:14 +0000
                Re: File type for .m4a files Chris Newman <mec@npost.uk> - 2026-03-04 13:08 +0000
                Re: File type for .m4a files Bob Latham <bob@sick-of-spam.invalid> - 2026-03-04 17:52 +0000
  Re: File type for .m4a files David Higton <dave@davehigton.me.uk> - 2026-02-25 20:09 +0000
    Re: File type for .m4a files Bob Latham <bob@sick-of-spam.invalid> - 2026-02-25 22:09 +0000
    Re: File type for .m4a files Harriet Bazley <harriet@bazleyfamily.co.uk> - 2026-02-25 22:09 +0000

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