Here are some exciting fruits of everyone's efforts so far (actual screenshots).
Monday, February 25, 2008
lain? lain!
The Serial Experiments Lain PSX Game Translation Project is really coming along. A few more wonderful translators have generously offered some help. We have roughly 7% of the game translated already.
Here are some exciting fruits of everyone's efforts so far (actual screenshots).
Here are some exciting fruits of everyone's efforts so far (actual screenshots).
Sunday, February 17, 2008
nihongo niban
Much awesomeness has transpired recently. But first, the dull ramblings of jpsxdec status.
Looked up how to encode uncompressed (RGB) AVI files. It's not too complicated--Microsoft and other sites have usable documentation. Even found a Java class to get me started. Of course if we're gonna write AVI files, we need to know the frame-rate. Just a simple 400 lines of code is all that took. Needed to also change the overall code design to a 'push' architecture with listeners. This had the additional bonus of pulling the actual file writing to the top-level interface--right where it belongs.
Overall things are looking pretty good. For the next release I want to add a new popup window showing the many decoding options.
Also in the future I want to allow for piping out uncompressed AVI to a program like ffmpeg or mencoder. For Windows I'll also include the infamous Video for Windows. Still need to add raw cd reading.
But while merrily carrying on with all this, out of nowhere came a fishy fellow with the powers of language transformation! He generously offered to spend some time with the S.E. Lain game. Sooo... efforts on jpsxdec are delayed as the Serial Experiments Lain PSX Game Translation Project commences (SELPGTP?).
But with 5.5 hours of audio, he has his work cut out for him. Do you share the powers of language transformation? We could really use your help.
On the technical side, we are working on adding the eventual translation into the game. And I present to you an actual screen shot based on an earlier idea.
Looked up how to encode uncompressed (RGB) AVI files. It's not too complicated--Microsoft and other sites have usable documentation. Even found a Java class to get me started. Of course if we're gonna write AVI files, we need to know the frame-rate. Just a simple 400 lines of code is all that took. Needed to also change the overall code design to a 'push' architecture with listeners. This had the additional bonus of pulling the actual file writing to the top-level interface--right where it belongs.
Overall things are looking pretty good. For the next release I want to add a new popup window showing the many decoding options.
Also in the future I want to allow for piping out uncompressed AVI to a program like ffmpeg or mencoder. For Windows I'll also include the infamous Video for Windows. Still need to add raw cd reading.
But while merrily carrying on with all this, out of nowhere came a fishy fellow with the powers of language transformation! He generously offered to spend some time with the S.E. Lain game. Sooo... efforts on jpsxdec are delayed as the Serial Experiments Lain PSX Game Translation Project commences (SELPGTP?).
But with 5.5 hours of audio, he has his work cut out for him. Do you share the powers of language transformation? We could really use your help.
On the technical side, we are working on adding the eventual translation into the game. And I present to you an actual screen shot based on an earlier idea.
Saturday, February 2, 2008
Amalgamation
Been busy with a bunch of different aspects of jpsxdec. Only the GUI and Code Design will be in the next release (v0.31 today!). The rest will show up in releases after that.
GUI
Even though it's a pretty lame GUI now, I hope it will drop the bar of entry a little.
Code Design
I had difficulty deciding on highest-level interface between the GUI/CLI and the logic. So I set it aside and worked on other things.
PSX YUV->yuv4mpeg2 conversion matrix
This will allow jpsxdec to output more accurate .yuv image sequences.
Frame Rate Calculation
I thought it was a good idea to guess the exact FF7 frame rate algorithm via trial-and-error. 8 hours later I finally saw that FF7 frame lengths do actually follow a pattern, but a ridiculous one. I hoped it would come to a frame rate of exactly 15/100.1% (half the rate of NTSC). That is close, but there was no way I could guess the underlying algorithm of this...
Raw CD reading (Windows)
Made a native program to read raw CD sectors via DeviceIoControl. It's a simple interactive prompt that accepts commands to open/close a CD and read sectors. I even setup a Java program to communicate with the native program via stdin/out. Unfortunately it was slow, and was very vulnerable to deadlock while reading from stdin. I also started adding ASPI for raw CD reading, but there seems to be a lot more to using that API.
Encoding via VFW (Video for Windows)
I worked out a little program to convert a series of raw image and audio data into an AVI, using the oh-so-familiar Video for Windows popup. I wonder if it can handle accepting all the audio at once, then all the video at once....
JNI
Even though I said it would be a pain in the butt, I guess it's really not so bad. It's kinda like translating VB6 COM code into C++. This will likely speed up raw CD reading, and save me from communicating via stdin/out.
Code Design
Finally got back to this again. Since no solution was particularly attractive, I went with the simplest one. This will only use one optionalcallback listener (for progress status).
However, I have begun to think that the 'pull' architecture is not the best approach to begin with. A 'push' architecture is more applicable to this situation: as sectors are read from the disc, they need to be 'pushed' into the appropriate streams. Listeners can be added to collect the streams of interest. If jpsxdec was to ever play media in real time (not likely), this would be the necessary design. In any case, the 'push' approach would make decoding a little faster because there is less seek time.
GUI
Even though it's a pretty lame GUI now, I hope it will drop the bar of entry a little.
Code Design
I had difficulty deciding on highest-level interface between the GUI/CLI and the logic. So I set it aside and worked on other things.
PSX YUV->yuv4mpeg2 conversion matrix
This will allow jpsxdec to output more accurate .yuv image sequences.
Frame Rate Calculation
I thought it was a good idea to guess the exact FF7 frame rate algorithm via trial-and-error. 8 hours later I finally saw that FF7 frame lengths do actually follow a pattern, but a ridiculous one. I hoped it would come to a frame rate of exactly 15/100.1% (half the rate of NTSC). That is close, but there was no way I could guess the underlying algorithm of this...
if (iMovieType == WACKED_NTSC1 && iThisFrame == 101)
iThisFrameLength = 11;
if (iMovieType == WACKED_NTSC2 && iThisFrame == 100)
iThisFrameLength = 11;
else if (iThisFrame == 200)
iThisFrameLength = 11;
else if (iThisFrame >= 203 && iThisFrame <= 298) {
if (((iThisFrame - 203) % 4) == 0)
iThisFrameLength = 11;
else if (((iThisFrame - 203) % 4) == 1)
iThisFrameLength = 9;
else
iThisFrameLength = 10;
}
else if (iThisFrame == 299)
iThisFrameLength = 11;
else if (iThisFrame >= 303 && iThisFrame <= 398) {
if (((iThisFrame - 303) % 4) == 0)
iThisFrameLength = 11;
else if (((iThisFrame - 303) % 4) == 1)
iThisFrameLength = 9;
else
iThisFrameLength = 10;
}
else if (iThisFrame == 399)
iThisFrameLength = 11;
else if (iThisFrame >= 402 && iThisFrame < 497) {
if (((iThisFrame - 402) % 4) == 0)
iThisFrameLength = 11;
else if (((iThisFrame - 402) % 4) == 2)
iThisFrameLength = 9;
else
iThisFrameLength = 10;
}
else if (iThisFrame == 498)
iThisFrameLength = 11;
else if (iThisFrame == 501)
iThisFrameLength = 11;
else if (iThisFrame >= 504 && iThisFrame <= 600) {
if (((iThisFrame - 504) % 4) == 0)
iThisFrameLength = 9;
else if (((iThisFrame - 504) % 4) == 2)
iThisFrameLength = 11;
else
iThisFrameLength = 10;
}
else
iThisFrameLength = 10;
Raw CD reading (Windows)
Made a native program to read raw CD sectors via DeviceIoControl. It's a simple interactive prompt that accepts commands to open/close a CD and read sectors. I even setup a Java program to communicate with the native program via stdin/out. Unfortunately it was slow, and was very vulnerable to deadlock while reading from stdin. I also started adding ASPI for raw CD reading, but there seems to be a lot more to using that API.
Encoding via VFW (Video for Windows)
I worked out a little program to convert a series of raw image and audio data into an AVI, using the oh-so-familiar Video for Windows popup. I wonder if it can handle accepting all the audio at once, then all the video at once....
JNI
Even though I said it would be a pain in the butt, I guess it's really not so bad. It's kinda like translating VB6 COM code into C++. This will likely speed up raw CD reading, and save me from communicating via stdin/out.
Code Design
Finally got back to this again. Since no solution was particularly attractive, I went with the simplest one. This will only use one optional
However, I have begun to think that the 'pull' architecture is not the best approach to begin with. A 'push' architecture is more applicable to this situation: as sectors are read from the disc, they need to be 'pushed' into the appropriate streams. Listeners can be added to collect the streams of interest. If jpsxdec was to ever play media in real time (not likely), this would be the necessary design. In any case, the 'push' approach would make decoding a little faster because there is less seek time.
Sunday, January 20, 2008
PSX YCbCr to yuv4mpeg2
PSX YCbCr
Given Y, Cb, and Cr color range of [-128, 127].PSX
[ 1 0 1.402 ] [ Y + 128 ] [ r ]
[ 1 -0.3437 -0.7143 ] * [ Cb ] = [ g ]
[ 1 1.772 0 ] [ Cr ] [ b ]
yuv4mpeg2 (i.e. Rec.601) YCbCr
Given Y color range of [16, 235] and Cb,Cr color range of [16, 240].Rec.601
[ 1.164 0 1.59 ] [ Y - 16 ] [ r ]
[ 1.164 -0.391 -0.813 ] * [ Cb - 128 ] = [ g ]
[ 1.164 2.018 0 ] [ Cr - 128 ] [ b ]
To convert a PSX YCbCr color to a Rec.601 YCbCr color:
Where[ 1 -3415973/13224846875 1242172/13224846875 ]
[ 0 105814197/105798775 -5608/105798775 ]
[ 0 19492/105798775 105791687/105798775 ]Answer: yuv4mpeg2^-1 * PSX =
[ 1 3415973/13225888625 -1242172/13225888625 ]
[ 0 105791687/105807109 5608/105807109 ]
[ 0 -19492/105807109 105814197/105807109 ]
Rec601_YCbCr =
PSX
[Y + 128] [ 16]
Rec601_Matrix^-1 * PSX_Matrix * [Cb ] + [128]
[Cr ] [128]
Rec601_Matrix^-1 * PSX_Matrix =Thanks to toruvinn for refreshing me on matrix math, and this site and Maxima for saving me from lots of raw calculations.
[250/291 -488509/2660418030 -82738/1330209015]
[0 4014411/4571165 164/4571165]
[0 3673/27426990 8031459/9142330]
Update 27Feb2010: Fixed.
Update 23Mar2010: Really fixed.
Sunday, January 6, 2008
HATSUHINODE
Hope all had a pleasant new year. As we enter 2008, it is interesting to note that this year marks the 10th anniversary of the Serial Experiments Lain anime series, along with the Playstation game.Now that holidays are over, I finally managed to release the latest compiled executable on the download page. No changes to the program interface (same wonderful command-line that you're used to ;), but it has all the latest internal goodness that I hope actually works--most notable is it now [edit] mostly supports FF8 (it would help to fully test it before making such calims :P).
Friday, December 14, 2007
Happy Winter Solstice
This time of year brings, among other things, demands that defy the known laws of time and space. So further updates for jPSXdec and the STR file format will have to wait until after the holidays.
In the works:
In the works:
Full FF8 supportdone!GUIwell, it's somethingRemoving dependence on Java 1.6, down to 1.5done!FF9 video supportvideo yes, audio noTIM image searching and convertingneed to include more comprehensive TIM searching
Thursday, November 29, 2007
Games tested with jPSXdec
PLEASE LEAVE A COMMENT ABOUT ANY GAME YOU USED WITH JPSXDEC
Alundra 2 - works
Valkyrie Profile - works
Xenogears - works
Final Fantasy Chronicles - works (video at 30 fps)
Saiyuki: Journey West - works
Intelligent Qube - works
Power Puff Girls - works
Simpsons Wrestling - works
Super Puzzle Fighter 2 Turbo - works
Lethal Enforcers 1 and 2 - works
Battle Arena Toshinden - works
Metal Gear Solid - works
Silent Hill - works
Tekken 3 - works
Xeno Gears - works
Motorhead - works
Oddworld Abes Oddysee - works
Spyro - works
Worms World Party - works
Soul Blade - works
R4 Ridge Racer Type 4 - works
Samples from ffmpeg examples
abc000.str - works (video at 30 fps)
descent_descent-e.str.bz2 - works
finalfantasyVII_movie-gold4.mov.bz2 - works
jumpingflash2_music2.xai.bz2 - works
jumpingflash2_movie-01.str.bz2 - works
lain.str - works
lunar2.str - works (video just under 20 fps)
river1.str - works (video at 12.5 fps)
st3.xa - works
logo.iki - works (from game "UmJammer Lammy")
Games requiring special handling
Serial Experiments Lain - works
FF7 - works
FF8 - works
FF9 - works
Chrono Cross - works
Alice in Cyberland - works
Sonic Wings Special - last movie seems like filler data, but can be converted if it is first copied off the disc normally
Ace Combat 3 - works
Legend of Mana
Gran Turismo?
G-Generation?
Ko'hloons Gate?
Maborosi (まぼろし月夜) Moonlit Night?
Formula 1?
Lunar 2?
BeatMania 4?
Alundra 2 - works
Valkyrie Profile - works
Xenogears - works
Final Fantasy Chronicles - works (video at 30 fps)
Saiyuki: Journey West - works
Intelligent Qube - works
Power Puff Girls - works
Simpsons Wrestling - works
Super Puzzle Fighter 2 Turbo - works
Lethal Enforcers 1 and 2 - works
Battle Arena Toshinden - works
Metal Gear Solid - works
Silent Hill - works
Tekken 3 - works
Xeno Gears - works
Motorhead - works
Oddworld Abes Oddysee - works
Spyro - works
Worms World Party - works
Soul Blade - works
R4 Ridge Racer Type 4 - works
Samples from ffmpeg examples
abc000.str - works (video at 30 fps)
descent_descent-e.str.bz2 - works
finalfantasyVII_movie-gold4.mov.bz2 - works
jumpingflash2_music2.xai.bz2 - works
jumpingflash2_movie-01.str.bz2 - works
lain.str - works
lunar2.str - works (video just under 20 fps)
river1.str - works (video at 12.5 fps)
st3.xa - works
logo.iki - works (from game "UmJammer Lammy")
Games requiring special handling
Serial Experiments Lain - works
FF7 - works
FF8 - works
FF9 - works
Chrono Cross - works
Alice in Cyberland - works
Sonic Wings Special - last movie seems like filler data, but can be converted if it is first copied off the disc normally
Ace Combat 3 - works
Legend of Mana
Gran Turismo?
G-Generation?
Ko'hloons Gate?
Maborosi (まぼろし月夜) Moonlit Night?
Formula 1?
Lunar 2?
BeatMania 4?
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