[EXPORT] Improve selection of the H.264 format profile on exporting

[RigacciOrg]

Commit Hash
d09c494

Platform
Debian GNU/Linux 12.2

Summary
When exporting a video with the H.264 codec, the format profile is automatically selected and it may be too high.

Additional Information / Output
I made several experiments exporting a video with different Encode Speed, Target Bit Rate, Maximum Bit Rate, etc. The resulting videos are in various video format profiles ([email protected], High@L4, [email protected], High@L5, [email protected]), depending on the mix of the options.

As far I understand, the profile is just a metadata, telling the player what are the specs required to play the video (roughly speaking it is a minumum requirement for the combination of resolution, fps and bitrate).

The problem is with my low-end player which refuses to play a video with profile [email protected], despite the video is a simple 1920x1080@30, with a low 4 Mbps bitrate. Olive Editor imposed the [email protected] profile just because I selected the very slow encode speed. If I produce a video with the same options but using ffmpeg on the command line and I select an High@4 level, the player is happy, and this should be compliant with the Advanced Video Coding specs.