Codec determination in extract burnin

[iLLiCiTiT]

Issue

Determination of input codec in new FFmpeg does not work the same way as in previously used version of FFmpeg.

Changes

• added few functions using codec specific keys from input data
  • these functions should be modified or added in future based on requirements of each codec
• these changes should handle current situation with decreased quality of outputs

Notes

• don't have enough testing input sources to check all possibilities and validate output
  • there is a chance that I broke something which worked with previous code
• result will probably never be the same as adding video filters (drawing burnins) to output will aways cause some issues
• possible solution to keep source 1:1 is to add burnins as part of ExtractReview and force all host implementations to create review with it