Thank you.
Thanks to the guide, I was able to get what I wanted. Thank you.
In addition, I would like to tell you what I have learned and what I have thought about in this process.
I did a search on Google with the DaVinci Resolve Naming Scheme. So I found something like the following on the following page.
https://forum.blackmagicdesign.com/viewtopic.php?f=2&t=32836

You can see that this is named CAMERA ID / Date / Time / Clip #. After knowing this, there is one question to be asked. For example, it has the name M13-1450_1_2018-06-13_0001_C0000. Why do MLVFS, MLV App, and Switch all display time information in clip name as 0001? Personally, it is more intuitive to display the time information than the meaningless information of 0001, so I think that there will be some profit because I can know the shooting time.
I tried to modify some of the code as a test and changed the name like M13-1450_1_2018-06-13_1450_C0000.
sprintf(*mlv_basename, "%s_1_%d-%02d-%02d_%02d%02d_C%04d", start, 1900 + frame_headers.rtci_hdr.tm_year, frame_headers.rtci_hdr.tm_mon + 1, frame_headers.rtci_hdr.tm_mday, frame_headers.rtci_hdr.tm_hour, frame_headers.rtci_hdr.tm_min, 0);

I think the naming scheme is more useful for displaying time information. Then I thought that "_1" after the camera "M13-1450" had no meaning, so I thought it seemed unnecessary.
I tried it and found that it was possible.

For your reference, let me tell you why I want to remove "MLV" from the clip name. My system will drop frames when playing clips loaded with MLVFS. So I have to convert it to dng for smooth editing. When I am done editing, the dngs are deleted, and sometimes I need to make some changes later. At this time, it is too time-consuming and energy-intensive to convert all back to dng, so I want to load it into MLVFS instead. At this time, if the clip names are the same, I can simply continue the work by specifying a new folder.
Thank you for your cooperation.
Thanks to the guide, I was able to get what I wanted. Thank you.
In addition, I would like to tell you what I have learned and what I have thought about in this process.
I did a search on Google with the DaVinci Resolve Naming Scheme. So I found something like the following on the following page.
https://forum.blackmagicdesign.com/viewtopic.php?f=2&t=32836

You can see that this is named CAMERA ID / Date / Time / Clip #. After knowing this, there is one question to be asked. For example, it has the name M13-1450_1_2018-06-13_0001_C0000. Why do MLVFS, MLV App, and Switch all display time information in clip name as 0001? Personally, it is more intuitive to display the time information than the meaningless information of 0001, so I think that there will be some profit because I can know the shooting time.
I tried to modify some of the code as a test and changed the name like M13-1450_1_2018-06-13_1450_C0000.
sprintf(*mlv_basename, "%s_1_%d-%02d-%02d_%02d%02d_C%04d", start, 1900 + frame_headers.rtci_hdr.tm_year, frame_headers.rtci_hdr.tm_mon + 1, frame_headers.rtci_hdr.tm_mday, frame_headers.rtci_hdr.tm_hour, frame_headers.rtci_hdr.tm_min, 0);

I think the naming scheme is more useful for displaying time information. Then I thought that "_1" after the camera "M13-1450" had no meaning, so I thought it seemed unnecessary.
I tried it and found that it was possible.

For your reference, let me tell you why I want to remove "MLV" from the clip name. My system will drop frames when playing clips loaded with MLVFS. So I have to convert it to dng for smooth editing. When I am done editing, the dngs are deleted, and sometimes I need to make some changes later. At this time, it is too time-consuming and energy-intensive to convert all back to dng, so I want to load it into MLVFS instead. At this time, if the clip names are the same, I can simply continue the work by specifying a new folder.
Thank you for your cooperation.