What should be the video size/width/height when a Video metadata has multiple Stream ... Video: lines?

[raihan2006i]

Hi. I am using ruby-av and paperclip-av-transcoder to process user uploaded video files.
And I was trying to identify size of this video http://www.dvdloc8.com/clip.php?movieid=12167&clipid=3 with

::Av.cli.identify('/home/arman/Downloads/simpsons_movie_1080p_hddvd_trailer/The Simpsons Movie - 1080p Trailer.mp4')

and it returned size as 101x150. Note: I have ffmpeg installed

{
            :length => "0:02:17.25",
          :duration => 137.25,
               :fps => 23,
              :size => "101x150",
             :width => 101,
            :height => 150,
            :aspect => 0.6733333333333333,
      :audio_encode => "aac (LC) (mp4a / 0x6134706D)",
     :audio_bitrate => "44100 Hz",
    :audio_channels => "5.1"
}

But the actual size of video is 1920x800. Then i checked video metadata with ffmpeg

ffmpeg -i "/home/arman/Downloads/simpsons_movie_1080p_hddvd_trailer/The Simpsons Movie - 1080p Trailer.mp4" 2>&1

And it returned

ffmpeg version N-83192-gf1214ad Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 4.8 (Ubuntu 4.8.5-2ubuntu1~14.04.1)
  configuration: --prefix=/home/arman/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/arman/ffmpeg_build/include --extra-ldflags=-L/home/arman/ffmpeg_build/lib --bindir=/home/arman/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
  libavutil      55. 44.100 / 55. 44.100
  libavcodec     57. 75.100 / 57. 75.100
  libavformat    57. 63.100 / 57. 63.100
  libavdevice    57.  2.100 / 57.  2.100
  libavfilter     6. 69.100 /  6. 69.100
  libswscale      4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc    54.  2.100 / 54.  2.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x2e90ec0] stream 0, timescale not set
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/arman/Downloads/simpsons_movie_1080p_hddvd_trailer/The Simpsons Movie - 1080p Trailer.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 1
    compatible_brands: isomavc1
    creation_time   : 2007-07-17T09:18:37.000000Z
    genre           : Trailer
    artist          : Fox
    title           : The Simpsons Movie
    date            : 2007
  Duration: 00:02:17.25, start: 0.000000, bitrate: 8591 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x800, 8486 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
    Metadata:
      creation_time   : 2007-07-17T09:18:37.000000Z
      handler_name    : GPAC ISO Video Handler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, 5.1, fltp, 107 kb/s (default)
    Metadata:
      creation_time   : 2007-07-17T09:18:45.000000Z
      handler_name    : GPAC ISO Audio Handler
    Stream #0:2: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 101x150 [SAR 72:72 DAR 101:150], 90k tbr, 90k tbn, 90k tbc

So there are two lines which have video size information.

Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x800, 8486 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)

Stream #0:2: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 101x150 [SAR 72:72 DAR 101:150], 90k tbr, 90k tbn, 90k tbc

Now my question is in that case how I will know the actual video size? Should i consider only the first one? Because ::Av.cli.identify is considering the last one as it loops through each lines and first size information gets overwrite by last line