ffmpeg -i ~/Desktop/1Video_2Audio_2SUBs_timed_text_streams_.mp4 -map 0 -f hls "[select=\'v:0,a:0\':f=hls]output.m3u8[select=\'s:0\':f=hls]english_vtt.m3u8 [select=\'s:1\':f=hls]ger_vtt.m3u8"

ffmpeg version N-82786-gc188f35 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  configuration: --prefix=/home/mrudolph/Development/tools/ffmpeg/build/ --extra-cflags=-I/home/mrudolph/Development/tools/ffmpeg/build//include --extra-ldflags=-L/home/mrudolph/Development/tools/ffmpeg/build//lib --bindir=/home/mrudolph/bin --disable-debug --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-openssl
  libavutil      55. 41.101 / 55. 41.101
  libavcodec     57. 66.109 / 57. 66.109
  libavformat    57. 58.101 / 57. 58.101
  libavdevice    57.  2.100 / 57.  2.100
  libavfilter     6. 68.100 /  6. 68.100
  libswscale      4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc    54.  2.100 / 54.  2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/mrudolph/Desktop/1Video_2Audio_2SUBs_timed_text_streams_.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 1
    compatible_brands: isom
    creation_time   : 2005-08-18T09:13:34.000000Z
  Duration: 00:00:46.53, start: 0.000000, bitrate: 1102 kb/s
    Stream #0:0(und): Video: mpeg4 (Advanced Simple Profile) (mp4v / 0x7634706D), yuv420p, 688x320 [SAR 1:1 DAR 43:20], 900 kb/s, 25 fps, 25 tbr, 25k tbn, 25 tbc (default)
    Metadata:
      creation_time   : 2005-08-18T09:13:34.000000Z
      handler_name    : GPAC ISO Video Handler
    Stream #0:1(eng): Audio: aac (Main) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 105 kb/s (default)
    Metadata:
      creation_time   : 2005-08-18T09:13:34.000000Z
      handler_name    : GPAC ISO Audio Handler
    Stream #0:2(ger): Audio: aac (Main) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 111 kb/s (default)
    Metadata:
      creation_time   : 2005-08-18T09:13:34.000000Z
      handler_name    : GPAC ISO Audio Handler
    Stream #0:3(ger): Subtitle: mov_text (tx3g / 0x67337874), 688x320, 0 kb/s (default)
    Metadata:
      creation_time   : 2005-08-18T09:13:34.000000Z
      handler_name    : GPAC Streaming Text Handler
    Stream #0:4(eng): Subtitle: mov_text (tx3g / 0x67337874), 688x320, 0 kb/s (default)
    Metadata:
      creation_time   : 2005-08-18T09:13:34.000000Z
      handler_name    : GPAC Streaming Text Handler
[libx264 @ 0x38c4de0] using SAR=1/1
[libx264 @ 0x38c4de0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x38c4de0] profile High, level 3.0
[webvtt @ 0x3fe6ca0] Exactly one WebVTT stream is needed.
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Stream mapping:
  Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  Stream #0:2 -> #0:2 (aac (native) -> aac (native))
  Stream #0:3 -> #0:3 (mov_text (native) -> webvtt (native))
  Stream #0:4 -> #0:4 (mov_text (native) -> webvtt (native))
    Last message repeated 1 times
[aac @ 0x38c6160] Qavg: -nan
[aac @ 0x38295e0] Qavg: -nan