Edit June 6 2018 - On request, simple / quick '.py' demo. added: _Test-title_fade-i-o.7z attachment.
Tested OK on Win. 10 64-bit + XP 32-bit.
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Hi & THANK YOU VERY MUCH!:
"* Filter:Implement fade-in / fade-out transition for 'Add logo'":
very easy + works fine.
No more outside ADM title clip creation + join hassle sure IS a RELIEF!
Thx also for new handy "Still-image-to-vid." flt.
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Steps -- for newbies (if any)
I happen to be a heavy user of such a ("pro touch" :) ) option. So, to anybody wanting to title their vids. with a simple fade-in/out effect, now in a snap:
1. Check video width × height ("I" button); example: 640 × 360 pixels...
2. Prepare some 72 dpi 8-bit RGB-color ".png" image of same (or smaller) size ;
say... by typing a name or short text line (IMAGE text in that case) on transparent background; save it to "T.png" -- using e.g. "Photoshop", "The Gimp" (freeware), "Fotografix 1.5" (ultralight freeware) or else.
3. Back to Avidemux -- 2.7.1 --, select a video codec, click "Filters", double click "Add logo." & click "Select" button, to browse + select the "T.png" file...
4. ... and set "Fade-in/out" field to some duration, e.g. 2 seconds > OK. Lastly, right click the added filter (on right column) > "Make partial", and set Start time to e.g. 0 h 0 m 3 s 000 & End time to 0 h 0 m 9 s 000 > OK.
Done. Now, encode the titled video.