Support Standard aptX in wav

[Carl Eugen Hoyos]

The codec is different from Enhanced aptX as currently implemented in FFmpeg.

$ ffmpeg -i ont4-aptx.wav
ffmpeg version N-92961-g90ab9a5 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 6.4.0 (GCC)
  configuration: --enable-gpl --enable-libxml2 --enable-gnutls --enable-gmp --enable-version3 --enable-libx264
  libavutil      56. 25.100 / 56. 25.100
  libavcodec     58. 43.101 / 58. 43.101
  libavformat    58. 25.100 / 58. 25.100
  libavdevice    58.  6.101 / 58.  6.101
  libavfilter     7. 47.100 /  7. 47.100
  libswscale      5.  4.100 /  5.  4.100
  libswresample   3.  4.100 /  3.  4.100
  libpostproc    55.  4.100 / 55.  4.100
[wav @ 0x2708500] Estimating duration from bitrate, this may be inaccurate
[wav @ 0x2708500] Could not find codec parameters for stream 0 (Audio: none ([37][0][0][0] / 0x0025), 32000 Hz, 2 channels, 256 kb/s): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, wav, from 'ont4-aptx.wav':
  Metadata:
    encoded_by      : Genesys
    date            : 2018/12/22
    creation_time   : 17:04:30
    time_reference  : 0
    coding_history  : A=APTX,F=32000,W=4,M=stereo,T=Genesys
                    :
  Duration: 00:00:09.97, bitrate: 258 kb/s
    Stream #0:0: Audio: none ([37][0][0][0] / 0x0025), 32000 Hz, stereo, 256 kb/s
At least one output file must be specified