Why are video software license restrictions? and you can not sell movies on video editing. For example, Movavi Video Editor is for personal use:

To the extent that the Software contains MPEG-2 functionality, the following provision applies: ANY USE OF THE PRODUCT OTHER THAN CONSUMER PERSONAL USE IN ANY MANNER THAT COMPLIES WITH THE MPEG-2 STANDARD FOR ENCODING VIDEO INFORMATION FOR PACKAGED MEDIA IS EXPRESSLY PROHIBITED WITHOUT A LICENSE UNDER APPLICABLE PATENTS IN THE MPEG-2 PATENT PORTFOLIO, WHICH LICENSE IS AVAILABLE FROM MPEG LA,L.L.C, 250 STEELE STREET, SUITE 300, DENVER, COLORADO 80206.
Use of MPEG-4 This product is licensed under the MPEG-4 Systems Patent Portfolio License for encoding in compliance with the MPEG-4 Systems Standard, except that an additional license and payment or royalties are necessary for encoding in connection with (i) data stored or replicated in physical media which is paid for an a title by title basis and/or (ii) data which is paid for on a title by title basis and is transmitted to an end user for permanent storage and/or use. Such additional license may be obtained from MPEG LA,LLC. See http://www.mpegla.com for additional details.
This product is licensed under the MPEG-4. This product is licensed under the MPEG-4 Visual Patent Portfolio License for the personal and non-commercial use of a consumer for (i) encoding video in compliance with the MPEG-4 Visual Standard (MPEG-4 Video) and/or (ii) decoding MPEG-4 video that was encoded by a consumer engaged in a personal and non-commercial activity and/or was obtained from a video provider licensed by MPEG LA to provide MPEG-4 video. No license is granted or shall be implied for any other use.
Additional information including that relating to promotional, internal and commercial uses and licensing may be obtained from MPEG LA, LLC. See http://www.mpegla.com.
H.264/AVC Notice. To the extent that the Software contains AVC encoding and/or decoding functionality, commercial use of tH.264/AVC requires additional licensing and the following provision applies: THE AVC FUNCTIONALITY IN THIS PRODUCT IS LICENSED HEREIN ONLY FOR THE PERSONAL AND NON-COMMERCIAL USE OF A CONSUMER TO: (i) ENCODE VIDEO IN COMPLIANCE WITH THE AVC STANDARD ("AVC VIDEO") AND/OR (ii) DECODE AVC VIDEO THAT WAS ENCODED BY A CONSUMER ENGAGED IN A PERSONAL AND NON-COMMERCIAL ACTIVITY AND/OR AVC VIDEO THAT WAS OBTAINED FORM A VIDEO PROVIDER LICENSED TO PROVIDE AVC VIDEO. INFORMATION REGARDING OTHER USES AND LICENSES MAY BE OBTAINED FROM MPEG LA L.L.C. SEE HTTP://WWW.MPEGLA.COM.

The same is true with other softwares full Cyberlink Power Director.

How to sell movies legally with software and SLR h.264  is not for commercial use?

Sorry for poor English.