I share your point of view because I am an old style underwater still photographer. But every second diver has a Gopro these days and if any of them use Subsurface the facility is probably useful. If I were a videographer I would probably use this option.
On Fri, 24 Sep 2021, 17:47 Dirk Hohndel via subsurface, < [email protected]> wrote: > > > On Sep 24, 2021, at 5:08 AM, Willem Ferguson via subsurface < > [email protected]> wrote: > > When right-clicking on a photo in the Subsurface Media tab on my desktop I > just came across the option "Save dive data as subtitles". What does this > do? I would like to include this in the user manual. > > > Well, here's what the manual says today... > > *By right-clicking on a video and selecting the "Save dive data as > subtitles" option, a subtitles* > *file with the same name as the video but with an ".ass" extension is > created that contains* > *time dependent dive data (runtime, depth, temperature, NDL, TTS, surface > GF) to be overlayed* > *with the video. The VLC video player automatically finds this file upon > playing the video* > *and overlays the dive data. Alternatively, the ffmpeg video encoder can > be used to create a* > *new video file with the dive data encoded in the video stream. To do so > run* > > * ffmpeg -v video.mp4 -vf "ass=video.ass" video_with_data.mp4* > > *from the command line. You need to have the libass library installed.* > > > > This is the classic example of a feature that one or two people wanted, > one person implemented, and that no one uses or knows about. > I'm tempted to make a bet whether this actually works - or whether this > works on a platform different from the one the implementer uses... > > Well, this feature was added by Robert > > commit 52105e521720c87e64dbd2519be7bbe5dc243439 > Author: Robert C. Helling <[email protected]> > Date: Sun Apr 14 16:19:23 2019 +0200 > > Write dive data as video subtitles > > This commit adds an entry to the dive media context > menu which offers to write a subtitle file. This > creates an .ass file for the selected videos. > > In an attempt to to clutter the screen too much, don't > show irrelevant entries (zero temperature or > NDL and show TTS only for dives with stops). > > VLC is able to show these subtitles directly, they > can be integrated into the video file with ffmpeg. > > Signed-off-by: Robert C. Helling <[email protected]> > > So my guess is this works on macOS, this may work on Linux, this is > unlikely to have ever been tested on Windows. > > /D > _______________________________________________ > subsurface mailing list > [email protected] > http://lists.subsurface-divelog.org/cgi-bin/mailman/listinfo/subsurface >
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