Fix order of argument -rtsp_transport in ffmpeg command

[cailholm]

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Description of change

Fix #2150 and #1787 : the argument -rtsp_transport must be placed before the -i argument otherwise it is not effective.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.53%. Comparing base (8fff0ca) to head (958537b).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2173      +/-   ##
==========================================
- Coverage   98.53%   98.53%   -0.01%     
==========================================
  Files         875      875              
  Lines       14386    14385       -1     
==========================================
- Hits        14175    14174       -1     
  Misses        211      211              

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[relativeci]

#2892 Bundle Size — 10.34MiB (0%).

958537b(current) vs 8fff0ca master#2883(baseline)

Warning

Bundle contains 3 duplicate packages – View duplicate packages

Bundle metrics  no changes

	Current #2892	Baseline #2883
Initial JS	5.62MiB	5.62MiB
Initial CSS	304.89KiB	304.89KiB
Cache Invalidation	0%	57.81%
Chunks	51	51
Assets	172	172
Modules	1507	1507
Duplicate Modules	21	21
Duplicate Code	0.84%	0.84%
Packages	124	124
Duplicate Packages	3	3

Bundle size by type  no changes

	Current #2892	Baseline #2883
JS	7.41MiB	7.41MiB
IMG	2.49MiB	2.49MiB
CSS	321.68KiB	321.68KiB
Fonts	93.55KiB	93.55KiB
Other	17.7KiB	17.7KiB
HTML	13.58KiB	13.58KiB

Bundle analysis report Branch cailholm:add-rtsp-transport-tcp-... Project dashboard

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[Pierre-Gilles]

Thanks for the PR !