can't get AAC to play on agptek rocker and on sansa clip zip

[giksos]

Wondering about the status of AAC playback. Manual seems to imply it is supported, but it's not working for me.

On agptek rocker I get a white screen that says "Floating point excdeption, address 0x49ffe8" while using rockbox-agptekrocker-20240907.

On sansa clip zip it just skips over the file while using rockbox-sansaclipzip-20240907.

Code: [Select]

$ mediainfo NA\ -\ FH\ _\ Kosh.aac
General
Complete name                            : NA - FH _ Kosh.aac
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : iso5 (iso6/mp41)
File size                                : 115 MiB
Duration                                 : 1 h 1 min
Overall bit rate                         : 260 kb/s
Writing application                      : Lavf58.20.100
FileExtension_Invalid                    : braw mov mp4 m4v m4a m4b m4p m4r 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v

Audio
ID                                       : 1
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 1 h 1 min
Bit rate                                 : 258 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 113 MiB (99%)
Default                                  : Yes
Alternate group                          : 1


[giksos]

Update: scratch the sansadisk problem, I converted losslessly to m4a and it seems to be working, I guess rockbox looks at the extension.

The problem on agptek still remains, so I guess it must be agptek specific?

[bahus]

Yeah it might be extension related. Does it play if you simply rename extension to "mp4" or "m4a". If it fails check also if it shows valid track information (open context menu on file -> Show Track Info ).

[saratoga]

.aac (raw AAC transport stream) and .mp4/.m4a (mpeg4 AAC audio) are both supported but the file extension must match the file contents. If you put the wrong file extension then the wrong decoder will be loaded and the file won't play.

[Bilgus]

The crash on the rocker is the more concerning part