Misreported bitrate with mp4 files encoded with ALAC.

[lemonzest79]

Describe the bug Bitrate is misreported in the context display tab, also misreported as AAC and not ALAC.

Most of the time bitrate is reported correctly, but some times its over inflated as can be seen in the screen shot.

To Reproduce Play an mp4 file encoded with ALAC (Apple Lossless Audio Codec)

Expected behavior The Bitrate to be correctly reported

Screenshots:

System Information:

• Operating system:

Fedora 30 amd64

• Strawberry Version:

Version 0.6.5-27-g004b000

Additional context

The ALAC files are encoded with ffmpeg via the abcde CD ripper script.

[lemonzest79]

Mediainfo dump.

Complete name : /home/lemonzest/Music/Square_Enix/Octopath_TravelerArrangements-Break_&_Boost-/01.The_Frostlands.m4a Format : MPEG-4 Format profile : Apple audio with iTunes info Codec ID : M4A (isom/iso2) File size : 21.1 MiB Duration : 4 min 37 s Overall bit rate mode : Variable Overall bit rate : 639 kb/s Album : Octopath Traveler Arrangements -Break & Boost- Track name : The Frostlands Track name/Position : 1 Performer : Square Enix Genre : Soundtrack Recorded date : 2019 Tagged date : UTC 2019-07-25 13:09:06 Writing application : Lavf58.20.100 Cover : Yes Comment : Ripped with abcde 2.9.3 replaygain_track_peak : 0.7501 replaygain_album_peak : 0.9988 replaygain_track_gain : -3.04 dB replaygain_album_gain : -5.26 dB

Audio ID : 1 Format : ALAC Codec ID : alac Codec ID/Info : Apple Lossless Audio Codec Duration : 4 min 37 s Duration_LastFrame : -17 ms Bit rate mode : Variable Bit rate : 636 kb/s Nominal bit rate : 1 411 kb/s Channel(s) : 2 channels Sampling rate : 44.1 kHz Bit depth : 16 bits Stream size : 21.1 MiB (100%) Default : Yes Alternate group : 1

[jonaski]

I'm aware of the bitrate bug, I play 99% FLAC myself and it never occurs with FLAC, but I recently tested with some MP3 and MP4 files and I saw the bug too.

[jonaski]

The bitrate problem is fixed now. But identifying ALAC as its own format is a bit more tricky since it's the MP4 container, it's identified as just MP4 by both taglib and gstreamer.