Georeferencing: can not use CAM msgs from tlog files.

I have been using time offset since I started with aerial mapping with many flights. Now to get a better workflow I tried to use cam msgs from tlog, and get this: "Log file problem. No CAM messages. Aborting..."
I know tlog has CAMERA_FEEDBACK msgs, so why it does not find them. Also When looking to photo coverage projection on flight data I see that it does a better job at placing images tan Georeferencing. One needs to fickle too much with dir fov and cross fov to get nice results when looking at generated kml on google earth, and even then it does not do the same proyection/warping that you see in flight data. To ilustrate what I´m talking about:



When using further processing with Photoscan for example This KML is not important but, as a quick check or even to make short flights with lower image count It is very useful. For many agricultural uses as crop monitoring for example you need resolution but mosaic generation is not needed and overkill, too much data. Submeter precision not needed also but a better general orientation of images would work very well.
I want to help on translation of MP to Spanish also, as a way to return something to ardupilot and MP, as I been enjoying them from more tan 2 years as a user/tinkerer. I´m new to github and almost 0 knowledge in programing meaning no more tan a Little arduino.

Cheers
Hernan

Start by reproducing the issue with a tlog containing CAMERA_FEEDBACK messages and compare the Georeferencing output with the flight-data photo coverage projection. The issue names no source files or tests; done would mean CAM messages are recognized and the generated KML provides the requested image orientation and projection behavior.

Written by the indexing model from the issue text.