This macro adds a \youtube <ID> command that embeds a YouTube link
into the documentation.
The video container scales to a specified percentage of the available
horizontal area. It assumes a source aspect ratio of 16:9, but looks
acceptable with other ratios.
For backends that do not support <iframe> (e.g. QTextBrowser), shows
a clickable video thumbnail that open the YouTube link in an external
browser window. Unfortunately, QTextBrowser cannot load images from
a remote URL, so we need to store a thumbnail image in the .qch file.
Change-Id: I3a3a0c5a20dd90e5cec6357ba70a23ee47dbe825
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
Reviewed-by: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io>
8a1880029d