Low sample rate mp3 file can be processed on Android but not on Linux

[tjmorgan0]

We have an implementation on Android and Linux using the SuperpoweredAdvancedAudioPlayer. We received a low sample rate file from a customer that can be opened and decoded on Android but fails on Linux. If we resample the file to a higher bit rate it isn't a problem.

We're using the latest release of the Linux libraries, 2.5.1.

I can provide the file but GitHub won't let me attache an mp3 file.

[gaborszanto]

The decoding capabilities and source code of Superpowered on Android and Linux are identical, so theoretically this shouldn't happen. How exactly does it fail on Linux, at which API call?

[tjmorgan0]

It fails when opening the file after mainPlayer->open(mainPlayerMedia, NULL, true); and returns Superpowered::AdvancedAudioPlayer::PlayerEvent_OpenFailed from mainPlayer->getLatestEvent();

The specific error data is "PlayerEvent_OpenFailed 1005: Unknown file format".

[gaborszanto]

The only difference between Android and Linux is how the file is accessed, in some cases. Are you simply loading a path?

[tjmorgan0]

Yes, it's a complete file path like the following: /data/Development/MediaManager/Media/01ed15cbad345499f109bd8a6577f970.mp3

Our devices open millions of files per day. The only issues we've seen are from a couple of low bit rate files.

[gaborszanto]

Low bitrate and/or low sample rate? Please note that Superpowered can decode MP3 Layer 3 files only, and that specification has 44100 Hz minimum sample rate, so if the file has a lower sample rate, than it's not Layer 3, but Layer 2.

[ivannador]

Closing as there is no further input from the user.