Hello,
I'm trying to extract the movies from the PS2 games Digital Devil Saga and Digital Devil Saga 2, most of which are in .ips format. I've done some sleuthing and the most I've discovered is that "As near as I can tell, IPS is essentially an IPU video interleaved with ADPCM audio" from a forum post.
I found a tool called IPUDecoder which can decode video from the few .ipu files on the disks but unfortunately errors out when I try .ips files. However since the source code is available I'm considering attempting to modify it in order to extract .ips files as well. I don't care about getting the audio with these--just the video would be enough.
Since I've never attempted reverse engineering before, I wanted to ask if anyone had some advice on where to start, particularly in finding differences between the .ipu and .ips files and how those differences may translate to code.
Thanks in advance.
I'm trying to extract the movies from the PS2 games Digital Devil Saga and Digital Devil Saga 2, most of which are in .ips format. I've done some sleuthing and the most I've discovered is that "As near as I can tell, IPS is essentially an IPU video interleaved with ADPCM audio" from a forum post.
I found a tool called IPUDecoder which can decode video from the few .ipu files on the disks but unfortunately errors out when I try .ips files. However since the source code is available I'm considering attempting to modify it in order to extract .ips files as well. I don't care about getting the audio with these--just the video would be enough.
Since I've never attempted reverse engineering before, I wanted to ask if anyone had some advice on where to start, particularly in finding differences between the .ipu and .ips files and how those differences may translate to code.
Thanks in advance.