feat: port 2.1 image scroll producer

[ronag]

No description provided.

[ronag]

@5opr4ni this is ready for you to be verified

[5opr4ni]

@5opr4ni this is ready for you to be verified

I’ll have a look. Was in transmission when I saw it, and almost missed putting on some graphics. 🤣 (Mello)

[dotarmin]

@ronag This is not building unfortunately on the build server. It complains about unresolved external symbols and the build fails with two errors of the same type (see below).

error LNK2019: unresolved external symbol

Other branches works as expected.

Let me know what more information you need

[ronag]

Probably missing a reference to the cpp file in some make file.

[dotarmin]

Probably missing a reference to the cpp file in some make file.

Roger that. Let me know when you have looked at it so I can run the build.

[5opr4ni]

All expected commands works as expected regarding to function but not time.
Duration and end_time are probably based on another time. (A DURATION of 20 took 40 seconds.)
These commands where tested:
PLAY 1-10 mellocred speed 8

PLAY 1-10 mellocred speed 4 BLUR 4

PLAY 1-10 mellocred speed 8 BLUR 10

PLAY 1-10 hscrolltest speed 8 BLUR 10

PLAY 1-10 mellocred DURATION 20 BLUR 4

PLAY 1-10 mellocred END_TIME "2021-03-10 14:45:17"

[5opr4ni]

All expected commands works as expected regarding to function but not time.
Duration and end_time are probably based on another time. (A DURATION of 20 took 40 seconds.)

[5opr4ni]

Tested hard during rehearsals and broadcast of Melodifestivalen. Worked flawlessly! 🥳