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There are certain files that fails to play when I try to play them with ffplay. Here is the error they throw when trying to play,

❯ ffplay /usr/share/lmms/samples/instruments/harpsichord01.ogg
ffplay version n4.4 Copyright (c) 2003-2021 the FFmpeg developers
  built with gcc 10.2.0 (GCC)
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig
--enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libjack --enable-libmfx --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librav1e --enable-librsvg --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-nvdec --enable-nvenc --enable-shared --enable-version3
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
[wav @ 0x7f2660000c80] Could not find codec parameters for stream 0 (Audio: none (Og[0][0] / 0x674F), 44100 Hz, 1 channels, 144 kb/s): unknown codec
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, wav, from '/usr/share/lmms/samples/instruments/harpsichord01.ogg':
  Duration: 00:00:02.64, bitrate: 115 kb/s
  Stream #0:0: Audio: none (Og[0][0] / 0x674F), 44100 Hz, 1 channels, 144 kb/s
No decoder could be found for codec none
Failed to open file '/usr/share/lmms/samples/instruments/harpsichord01.ogg' or configure filtergraph
    nan    :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0

This file is from the DAW lmms, incase anyone wants to try this particular file, just install lmms and it should in the same path. Apart from ffplay I have also tried playing this particular file with gst-play-1.0, aplay, and mpv. They all fail to play this file, however Audacity and some players like Audcaious plays this file fine. I'm wondering what is wrong here.

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  • Nothing's wrong, ffmpeg does not support all existing audio codecs. Commented May 3, 2021 at 9:37
  • I see, what about gst-play-1.0, aplay and mpv, those doesn't support all audio codecs either? Commented May 3, 2021 at 10:15
  • The file is anomalous. The extension is ogg but the format is WAV (the first four bytes are RIFF whereas .ogg starts with OggS). The codec is vorbis for which ffmpeg has a native decoder. Forcing the vorbis decoder reveals the following warning: Extradata corrupt. Extradata, in ffmpeg parlance, is the codec configuration. This error seems to affect only this file in these folder of samples. So, I would just contact LMMS and ask them to provide a well-formed Ogg file. Commented May 3, 2021 at 10:24
  • mpv uses ffmpeg libraries, not sure about gst and aplay. Commented May 3, 2021 at 11:10

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