Support and General Use > Audio Playback, Database and Playlists

iRivers and M4A Playback

<< < (2/2)

Lear:
No. The "plugin" required is a part of the default Rockbox install. However, Rockbox won't play all m4a files. A couple of possible reasons:


* The file is DRM protected (but then it should be called m4p).
* The file contains HE-AAC, in which case the playback wouldn't be realtime on an H120.
* The file isn't streamable; i.e., the metadata comes after the audio data. Can be fixed with different programs. In Foobar2000, the function is called "Optimize MP4 Layout" (IIRC).

linuxstb:
Lear,

Do you know of an easy way for users to check for 2) and 3) (and maybe even 1) ?

GodEater:
Does the GNU "file" utility recognise .m4a files? If so, I assume it would fail on a DRM'd one since the content would be essentially goblidigook ?

saratoga:
Where did you get the m4a file from?

Lear:

--- Quote from: linuxstb on May 22, 2007, 11:03:52 AM ---Lear,

Do you know of an easy way for users to check for 2) and 3) (and maybe even 1) ?

--- End quote ---

Number 2 is easily checked with something like Foobar2000, or any other program that can display detailed MP4 file information (check for HE-AAC or SBR). For number 3, I'm only aware of mp4dump, part of the mpeg4iptools package. I don't have a file of type 1, so I don't know about that.

Navigation

[0] Message Index

[*] Previous page