Error: seeking in file sample.aac: function not supported

[XVilka]

If you are playing some AAC file, but trying to go forward a few seconds or backward it shows this error instead of seeking properly.

1. uname -a:

Linux host 4.19.6-300.fc29.x86_64 #1 SMP ... x86_64 GNU/Linux

2. cmus --version:

cmus v2.8.0-rc0

3. cmus --plugins:

Input Plugins: /usr/lib64/cmus/ip
  mad:
    Priority: 55
    File Types: mp3 mp2
    MIME Types: audio/mpeg audio/x-mp3 audio/x-mpeg
  modplug:
    Priority: 50
    File Types: mod s3m xm it 669 amf ams dbm dmf dsm far mdl med mtm okt ptm stm ult umx mt2 psm
    MIME Types:
  mpc:
    Priority: 50
    File Types: mpc mpp mp+
    MIME Types: audio/x-musepack
  wavpack:
    Priority: 50
    File Types: wv
    MIME Types: audio/x-wavpack
  vorbis:
    Priority: 50
    File Types: ogg oga ogx
    MIME Types: application/ogg audio/x-ogg
  wav:
    Priority: 50
    File Types: wav
    MIME Types:
  mp4:
    Priority: 50
    File Types: mp4 m4a m4b
    MIME Types:
  flac:
    Priority: 50
    File Types: flac fla
    MIME Types:
  cue:
    Priority: 50
    File Types:
    MIME Types: application/x-cue
  aac:
    Priority: 50
    File Types: aac
    MIME Types: audio/aac audio/aacp
  opus:
    Priority: 50
    File Types: opus
    MIME Types:
  ffmpeg:
    Priority: 30
    File Types: aa aac ac3 aif aifc aiff ape au fla flac m4a m4b mka mkv mp+ mp2 mp3 mp4 mpc mpp ogg shn tak tta wav webm wma wv
    MIME Types:

Output Plugins: /usr/lib64/cmus/op
  pulse
  alsa
  ao

[tomty89]

Well:

cmus/ip/aac.c

Lines 384 to 387 in 65d36d5

	static int aac_seek(struct input_plugin_data *ip_data, double offset)
	{
	return -IP_ERROR_FUNCTION_NOT_SUPPORTED;
	}

As a workaround, add:

input.ffmpeg.priority=40
input.mp4.priority=30
input.aac.priority=30

or perhaps even:

input.mp4.priority=0
input.aac.priority=0

to ~/.config/cmus/rc

[tomty89]

Btw, I don't think the aac plugin would be getting any feature update. Not only that cmus is inactive, it's more of, who wants faad these days?

[XVilka]

For me it is easier to convert the file. But haven't seen the issue in the list, thus created a new one.

[nefthy]

Seeking is quite a basic feature. We should either implement seeking for aac or get rid of the plugin.