View Single Post
Old 27 November 2016, 13:18   #113
emufan
Registered User
 
Join Date: Feb 2012
Location: #DrainTheSwamp
Posts: 4,545
Quote:
Originally Posted by emufan View Post
#3) how do they do the timing? are there some hidden frames or is it the filelength?
i thought we could just use any video file, but this does not work, why not?
you have to convert the video file to ntsc, you can do so with ffmpeg:
23.976fps:
ffmpeg -i video-pal.mp4 -r ntsc-film video-ntsc.avi
ffmpeg -i video-pal.mp4 -filter:a "atempo=0.959040959040959" -r ntsc-film video-ntsc.avi
29.97fps:
ffmpeg -i video-pal.mp4 -r ntsc video-ntsc.avi
ffmpeg -i video-pal.mp4 -filter:a "atempo=0.959040959040959" -r ntsc video-ntsc.avi
--> not sure about the audio filter option (lists many errors), but the result you can now use with any ALG game

#2) if you get the blue screen (aka problem with videofile) with a valid video file, just try to switch the genlock mode
to "Video file" and then back to "American Laser Games" - i think there is some instability.

Last edited by emufan; 27 November 2016 at 15:28.
emufan is offline  
 
Page generated in 0.04677 seconds with 11 queries