Can't play m4a

Hi all...

$ mplayer fantasia_a_due-prova_13_agosto.m4a MPlayer 1.3.0 (Debian), built with gcc-8 (C) 2000-2016 MPlayer Team
do_connect: could not connect to socket
connect: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing fantasia_a_due-prova_13_agosto.m4a.
libavformat version 58.20.100 (external)
Mismatching header version 58.12.100
libavformat file format detected.
[aac @ 0x7f3d40c41e00]Could not find codec parameters for stream 0 (Audio: aac, 0 channels, fltp): unspecified sample rate
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[lavf] stream 0: audio (aac), -aid 0
Load subtitles in ./
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
libavcodec version 58.35.100 (external)
Mismatching header version 58.18.100
Ignoring broken container sample rate for AAC with SBR
Unknown/missing audio format -> no sound
ADecoder init failed :(
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
Could not get audio data!
ADecoder init failed :(
ADecoder init failed :(
Opening audio decoder: [spdif] libavformat/spdifenc audio pass-through decoder.
[spdif @ 0x7f3d40c41e00]Codec 0 is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
This codec is not supported by spdifenc.
ADecoder init failed :(
ADecoder init failed :(
Cannot find codec for audio format 0x4134504D.
Audio: no sound
Video: no video


Exiting... (End of file)


What missing, what should I install...?  I'm running Debian.

Thanks for any help,

Rodolfo

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