![]() ![]() This is represented by the positioning information of the standard which defines a horizontal and vertical margin. Historically, the text-safe area of film has been user adjustable. The alternative is to define a metric that should be accepted among most of us as a standard and then take steps to alter the USF standard to reflect it. I have not figured out yet what the specification from VideoLAN is. One option is to use the USF implementation of VLC as standard. PAL and NTSC are now obsolete as system metrics.īecause of this, it is important to try and define the size attribute more clearly. There is no DPI standard for TV screens and there is for that fact, no standard of any use for TV resolution. I'm under the impression that they should be interpretted as points, not pixels. For example, when describing a font style, values that appear similar to an HTML font size are used. While reading through the USF spec, I've learned that most any numbers that are size oriented are poorly represented. ![]() 890 which are ancient also occur far too often. An example of this format is PAC which is, in my personal experience the most used subtitling format in the scandinavian professional world. Since the software I develop is in use by many post processing facilities preparing subtitles for digital broadcast on DVB networks, I'd like to use my "pull" to try and make USF the defacto standard since the alternatives are closed formats from FAB and Screen Subtitling and they lack the richness of USF and are typically binary coded using unusual character encodings. I have implemented many of the professional subtitling formats in the application which I produce and have come to the realization that with the exception of only two or three formats, USF would be suitable as an intermediate format between the others and graphical representation. So, I'm asking to open some discussion here as to the USF standard which in my opinion is incredbily incomplete. I'm not a VLC developer, however I regularly use VLC as a testbed for interpretting standards which are not quite wide spread.
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