ZVBI Library
0.2.33
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Information about the picture aspect ratio and open subtitles. More...
Data Fields | |
int | first_line |
int | last_line |
double | ratio |
vbi_bool | film_mode |
vbi_subt | open_subtitles |
Information about the picture aspect ratio and open subtitles.
This is available via VBI_EVENT_ASPECT.
int vbi_aspect_ratio::first_line |
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).
double vbi_aspect_ratio::ratio |
The picture aspect ratio in anamorphic mode, 16/9 for example. Normal or letterboxed video has aspect ratio 1/1.
vbi_bool vbi_aspect_ratio::film_mode |
TRUE
when the source is known to be film transferred to video, as opposed to interlaced video from a video camera. (This is actually a helper flag for PALPlus decoders, but it may assist deinterlacers too.)
vbi_subt vbi_aspect_ratio::open_subtitles |
Describes how subtitles are inserted into the picture, see vbi_subt for details.