Problem in default values, overwrited SSA to ASS

[latot]

Hi, there to much things in this issue, #18, i'll split point by point, the first is this, some values in the conversion are overwrited somewhere and ignore the default values of https://github.com/tkarabela/pysubs2/blob/master/pysubs2/ssastyle.py

Here an example:

[Script Info]
Title: karaoke
ScriptType: v4.00+
WrapStyle: 0
ScaledBorderAndShadow: yes
PlayResY: 600

[V4+ Styles]
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, TertiaryColour, BackColour, Bold, Italic, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, AlphaLevel, Encoding
Style: OK,Britannic Bold,30,16777215,65535,65535,&H0029464b,0,0,1,2,1,2,10,10,10,0,0

[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.00,0:00:05.00,OK,NTP,0000,0000,0000,!Effect,Hi

Converting to ASS:

[Script Info]
; Script generated by pysubs2
; https://pypi.python.org/pypi/pysubs2
Title: karaoke
ScriptType: v4.00+
WrapStyle: 0
ScaledBorderAndShadow: yes
PlayResY: 600

[V4+ Styles]
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
Style: OK,Britannic Bold,30.0,&H00777215,&H00000535,&H00000535,&H0029464B,0,0,0,0,1.0,2.0,10.0,10.0,10,0.0,0.0,2,10,10,10,1

[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.00,0:00:05.00,OK,NTP,0,0,0,!Effect,Hi

Here a comparative values doesn't match:

                   SSA (original), ASS (converted)
BorderStyle 1                     10
Outline        2                      0
Shadow       1                      0
Encoding     0                      1

And there is some weird values, like ScaleX and ScaleY, in the dafult values of pysubs2 there is right values, but when write the file there is others, here other table, that values are ASS only, so should use the pysubs2 values (don't exist in SSA):

              Default (pysubs2)  Writed value (converted)
ScaleX   100                        1
ScaleY   100                        2
Spacing 0                           10
Angle     0                           10

Bye.

[latot]

New thing, i found this is because if how pysubs2 detect the file type, the players accept [V4+ Styles] as substation, while where have weird things, if i change it to [V4 Styles] works fine.