Ability to decode metadata in json(UTF-16) format

[max79]

Summary of the bug:
How to reproduce:

ffmpeg version git-2019-11-05-c54268c Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 9.2.1 (GCC) 20191010
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 35.101 / 56. 35.101
  libavcodec     58. 60.100 / 58. 60.100
  libavformat    58. 34.101 / 58. 34.101
  libavdevice    58.  9.100 / 58.  9.100
  libavfilter     7. 66.100 /  7. 66.100
  libswscale      5.  6.100 /  5.  6.100
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100
Input #0, aac, from 'http://ic7.101.ru:8000/a38':
  Metadata:
    icy-br          : 64
    icy-description : Radio101
    icy-genre       : POP
    icy-name        : Radio101
    icy-pub         : 0
    icy-url         : 101.ru
    StreamTitle     : {"title":"\u0425\u043e\u0440 \u0421\u0432\u044f\u0442\u043e-\u0414\u0430\u043d\u0438\u043b\u043e\u0432\u0430 \u041c\u043e\u043d\u0430\u0441\u0442\u044b\u0440\u044f - \u0422\u0440\u0438\u0441\u0432\u044f\u0442\u043e\u0435","titleTrack":"\u0422\u0440\u0438\ 
                    : 0 
                    :  
                    : 
  Duration: N/A, bitrate: 63 kb/s
    Stream #0:0: Audio: aac (HE-AACv2), 44100 Hz, stereo, fltp, 63 kb/s

My Radio stream example was like this:

​http://ic7.101.ru:8000/a38

[max79]

Replying to cehoyos:

Can you please pointing me to main ticket about such issue? thx

[Carl Eugen Hoyos]

It looks like a duplicate of ticket #7409 to me: Am I wrong?

[max79]

Replying to cehoyos:

It looks like a duplicate of ticket #7409 to me: Am I wrong?

Please excuse me, i'm loosing my track :( You are correct!