option over inherited tag:
index=0
TAG:stereo_mode=left_right
side_data_type=Stereo 3D
type=side by side
inverted=0
view=packed
primary_eye=none
baseline=0
horizontal_disparity_adjustment=0/1
horizontal_field_of_view=0/1
explicit tag:
index=0
TAG:stereo_mode=right_left
side_data_type=Stereo 3D
type=side by side
inverted=1
view=packed
primary_eye=none
baseline=0
horizontal_disparity_adjustment=0/1
horizontal_field_of_view=0/1
empty tag:
index=0
TAG:stereo_mode=top_bottom
side_data_type=Stereo 3D
type=top and bottom
inverted=0
view=packed
primary_eye=none
baseline=0
horizontal_disparity_adjustment=0/1
horizontal_field_of_view=0/1
