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<hr><h1>vbi_aspect_ratio Struct Reference<br>
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[<a class="el" href="group__Event.html">Events</a>]</small>
</h1>Information about the picture aspect ratio and open subtitles.
<a href="#_details">More...</a>
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<tr><td nowrap align=right valign=top>int </td><td valign=bottom><a class="el" href="structvbi__aspect__ratio.html#m0">first_line</a></td></tr>
<tr><td nowrap align=right valign=top>double </td><td valign=bottom><a class="el" href="structvbi__aspect__ratio.html#m2">ratio</a></td></tr>
<tr><td nowrap align=right valign=top>vbi_bool </td><td valign=bottom><a class="el" href="structvbi__aspect__ratio.html#m3">film_mode</a></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="group__Event.html#a18">vbi_subt</a> </td><td valign=bottom><a class="el" href="structvbi__aspect__ratio.html#m4">open_subtitles</a></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
Information about the picture aspect ratio and open subtitles.
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This is available via <a class="el" href="group__Event.html#a30">Events</a>.
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<hr><h2>Field Documentation</h2>
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<td class="md" nowrap valign="top"> int vbi_aspect_ratio::first_line
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<em><a class="el" href="structvbi__aspect__ratio.html#m0">first_line</a></em> and <em>last_line</em>, inclusive, describe the bounds of active video, i. e. without the black bars in letterbox mode. These are <em>first field</em> line numbers according to the ITU-R line numbering scheme, see <a class="el" href="structvbi__sliced.html">vbi_sliced</a>. For example PAL 23 ... 310 (288 lines), NTSC 22 ... 262 (240 lines). </td>
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<td class="md" nowrap valign="top"> double vbi_aspect_ratio::ratio
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The picture aspect ratio in <em>anamorphic</em> mode, 16/9 for example. Normal or letterboxed video has aspect ratio 1/1. </td>
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<td class="md" nowrap valign="top"> vbi_bool vbi_aspect_ratio::film_mode
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<code>TRUE</code> 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.) </td>
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<td class="md" nowrap valign="top"> <a class="el" href="group__Event.html#a18">vbi_subt</a> vbi_aspect_ratio::open_subtitles
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Describes how subtitles are inserted into the picture, see vbi_subt for details. </td>
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