Support for SEGA CD/MEGA CD video and audio codecs used in Road Avenger videogame

[Cristian]

Hello.

As instructed by the person running the X/Twitter account (thank you!), I am here, making a wish, basically.
How feasible would it be to add support for the codec used in said game and, ultimately, all SEGA CD/MEGA CD games?
I've attached a video file from the game so it can be inspected and analyzed.
Obviously, I came with the expectation that it might never happen, BUT, with the skillful and talented developers making FFmpeg and the fact that there are emulators for the console, it might happen (?).

Thank you for your time, everyone! And thank you FFmpeg, seriously.

One extra, higer lenght file.
​https://www.mediafire.com/file/6w73qzrikia3j07/OPN.BIN/file

[Cristian]

AV File from the game.

[compn]

there is an open source sega cg emulator
​https://emulation-evolved.net/
with source ​http://mk2k.net/releases/pc/emu/gensplusrewind-1.1-src-mk2k.zip

so at least , if the segacd format isnt already reverse engineered ​https://wiki.multimedia.cx/index.php/Sega_CD
some sega cd video formats have been looked at: ​https://wiki.multimedia.cx/index.php/LMS and ​https://wiki.multimedia.cx/index.php/Amazing_Spider-Man_BIN well probably more ​https://wiki.multimedia.cx/index.php/Category:Game_Formats

we can use that emulator source to reverse engineer it. possibly.

if you know of other emulator source code we can look at, it makes things easier for us.

[Cristian]

Replying to compn:

there is an open source sega cg emulator
​https://emulation-evolved.net/
with source ​http://mk2k.net/releases/pc/emu/gensplusrewind-1.1-src-mk2k.zip

so at least , if the segacd format isnt already reverse engineered ​https://wiki.multimedia.cx/index.php/Sega_CD
some sega cd video formats have been looked at: ​https://wiki.multimedia.cx/index.php/LMS and ​https://wiki.multimedia.cx/index.php/Amazing_Spider-Man_BIN well probably more ​https://wiki.multimedia.cx/index.php/Category:Game_Formats

we can use that emulator source to reverse engineer it. possibly.

if you know of other emulator source code we can look at, it makes things easier for us.

Hello. Thank you so much for looking into this.

Other opensource emulators are
Blastem: ​https://www.retrodev.com/blastem/ (or acording to this, it should ​https://docs.libretro.com/library/blastem/ )
Picodrive: ​https://github.com/libretro/picodrive/tree/master/pico

Both have SegaCD/MegaCD support.

If I find any more, I'll make sure to post them here.