Data Fields | |
int | first_line |
int | last_line |
double | ratio |
vbi_bool | film_mode |
vbi_subt | open_subtitles |
This is available via VBI_EVENT_ASPECT.
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first_line and last_line, inclusive, describe the bounds of active video, i. e. without the black bars in letterbox mode. These are first field line numbers according to the ITU-R line numbering scheme, see vbi_sliced. For example PAL 23 ... 310 (288 lines), NTSC 22 ... 262 (240 lines). |
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The picture aspect ratio in anamorphic mode, 16/9 for example. Normal or letterboxed video has aspect ratio 1/1. |
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Describes how subtitles are inserted into the picture, see vbi_subt for details. |