Timings in CAMM are incorrect for both video and photo inputs

[himynamesdave]

Note how video is 10.6 seconds long

<QuickTime:Duration>10.60 s</QuickTime:Duration>

However, CAMM samples show duration of each at 1 seconds,

<Track2:SampleTime>0:00:50</Track2:SampleTime>
 <Track2:SampleDuration>1.00 s</Track2:SampleDuration>

Making samples longer than video, which is incorrect.

Sample rate should match gpx rate (0.2 seconds). This is similar to #8

UKBC002-out-exif.txt

[karamvirup]

46b721e
please have a look now.

[karamvirup]

@himynamesdave already have explained this to you, but let me know if there's anything to discuss

[himynamesdave]

#9 (comment)

@karamvirup can you please post the explanation here? for the benefit of the community. thanks!

[karamvirup]

sure! let's wait and do it with gpmf as it has similar ticket.

[himynamesdave]

#9 (comment)

this update does improve the timings in CAMM, but there is still an issue @karamvirup

In the example below I create a video from 57 images.

python3 telemetry-injector.py -c -i UKBC003-in/ -o UKBC003-out-camm.mp4

Examining the video:

exiftool -ee -G3 -api LargeFileSupport=1 -X UKBC003-out-camm.mp4 > UKBC003-out-camm.xml

I get:

<QuickTime:Duration>11.40 s</QuickTime:Duration>

but track duration seems incorrect

<Track2:TrackDuration>2.20 s</Track2:TrackDuration>
<Track2:MediaDuration>11.20 s</Track2:MediaDuration>
<Track2:HandlerType>Camera Metadata</Track2:HandlerType>

with final point at 11.00 seconds (when expected is 11.2 seconds)

<Track2:SampleTime>11.00 s</Track2:SampleTime>
<Track2:SampleDuration>0.20 s</Track2:SampleDuration>