Silent Debuggers Is A WIP

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grafx:huvideo [2020/11/29 06:42] – moozgrafx:huvideo [2020/11/29 12:42] (current) – mooz
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 {{:grafx:huvideo.png|}} {{:grafx:huvideo.png|}}
  
-FIXME small introduction+HuVIDEO is -as its name implied- a video format for the PC Engine developed by Hudson Soft.  
 +This format support videos up to 192 by 112 pixels, 10 frames per seconds and 16KHz ADPCM audio.
  
 Here is the list of games featuring HuVIDEO in chronological order: Here is the list of games featuring HuVIDEO in chronological order:
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 FIXME research history / Beyond shadow gate code / Rich's doc FIXME research history / Beyond shadow gate code / Rich's doc
  
-https://www.youtube.com/watch?v=aRNw9ccJHS4 +===== Format description =====
- +
-https://www.researchgate.net/publication/335322903_A_Tale_of_Two_CDs_Archaeological_Analysis_of_Full-Motion_Video_Formats_in_Two_PC_EngineTurboGrafx-16_Games +
- +
-https://archives.tg-16.com/Dengeki_PC_Engine_1995_06.htm +
- +
-===== Description =====+
  
 ^ Offset ^ Size (bytes)  ^ Description        ^ ^ Offset ^ Size (bytes)  ^ Description        ^
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 | 26     | 6             | Unknown | | 26     | 6             | Unknown |
  
-===== Power Golf 2 =====+==== Power Golf 2 ====
 The next 32 bytes following the header contains the palette of the video. The next 32 bytes following the header contains the palette of the video.
 The first frame is located 8 sectors away from the header. The first frame is located 8 sectors away from the header.
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-===== John Madden Duo CD Football =====+==== John Madden Duo CD Football ====
 The header is the same as Power Golf 2. The header is the same as Power Golf 2.
 The only way to tell if a video has ADPCM is to check its size. The only way to tell if a video has ADPCM is to check its size.
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 <code>sox --rate 16k adpcm_sample.vox sample.ogg</code> <code>sox --rate 16k adpcm_sample.vox sample.ogg</code>
  
-===== Yuna HuVIDEO CD / Gulliver Boy =====+==== Yuna 2 / Yuna HuVIDEO CD / Gulliver Boy ====
 For those games, the signature changes to ''HuVideo'' where spaces are replaced by 0. For those games, the signature changes to ''HuVideo'' where spaces are replaced by 0.
 The graphics are encoded as tiles and the ADPCM length specifies the number of sectors used by a single frame. The graphics are encoded as tiles and the ADPCM length specifies the number of sectors used by a single frame.
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 <code>N0 = w * h * 32 / 8 / 8</code> <code>N0 = w * h * 32 / 8 / 8</code>
 The size of the tile palettes is ''w*h/128'' because 1 bytes contains the palettes for two consecutive tiles. The palette of tile ''i'' is stored in the last 4 bits, and the one for tile ''i+1'' in the first 4 ones.  The size of the tile palettes is ''w*h/128'' because 1 bytes contains the palettes for two consecutive tiles. The palette of tile ''i'' is stored in the last 4 bits, and the one for tile ''i+1'' in the first 4 ones. 
 +
 +===== Replay routines =====
 +==== Power Golf 2 ====
 +FIXME
 +==== John Madden Duo CD Football ====
 +FIXME
 +==== Yuna 2 / Yuna HuVIDEO CD / Gulliver Boy ====
 +FIXME
 +
 +===== References =====
 +
 +  * [[https://www.youtube.com/watch?v=aRNw9ccJHS4
 +|Gulliverboy HuVideo insertion test]]
 +
 +  * [[https://www.researchgate.net/publication/335322903_A_Tale_of_Two_CDs_Archaeological_Analysis_of_Full-Motion_Video_Formats_in_Two_PC_EngineTurboGrafx-16_Games|A Tale of Two CDs: Archaeological Analysis of Full-Motion Video Formats in Two PC Engine/TurboGrafx-16 Games]]
 +
 +  * [[https://archives.tg-16.com/Dengeki_PC_Engine_1995_06.htm|GULLIVER BOY, ACT II: HuVIDEO]]
 +
  
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