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[[Gotcha Force | ← Gotcha Force]] | |||
''This article is about Gotcha Force CHD file format and ongoing researches on it.'' | |||
{{Research | 3| Researches on headers / bodies structures has to be done. }} | |||
" | GCD of CHD lengths = 16 | ||
CHD files contain several blocks: | |||
'''0x0 "Head"''' Header CHD | |||
* 0x4 - 4 bytes uint - '''Prog''' block header offset. | |||
* 0x8 - 4 bytes - Quantity? | |||
* 0xC - 4 bytes uint - Total file length. | |||
* 0x10 - 4 bytes - Unknown | |||
* 0x14 - 4 bytes - Unknown | |||
* 0x18 - 4 bytes uint - '''Smpl''' block header offset. | |||
* 0x1C - 4 bytes uint - '''DSPi''' block header offset. | |||
'''0x20 "Prog"''' <span style="color: rgb(241, 196, 15);"> It could describe audio datas or script.</span> | |||
* 0x24 - 4 bytes uint - data block length. | |||
* 0x28 - 4 bytes - Quantity? | |||
* 0x2C - 4 bytes - -1? | |||
'''0x0 "Smpl"''' Samples? | |||
* 0x4 - 4 bytes uint - data block length. | |||
* 0x8 - 4 bytes - Samples count? (In hexadecimal - Ex 0x68 = 104 + 1(0,1,2....104)) | |||
* 0xC - 4 bytes - -1? | |||
'''0x0 "Dspi"''' <span style="color: rgb(241, 196, 15);">DSP for DSPADPCM, idea for further investigations: List of DSP in [[DPK (Gotcha Force)]].</span> | |||
* 0x4 - 4 bytes uint - data block length. | |||
* 0x8 - 4 bytes - DSP count? (In hexadecimal) | |||
* 0xC - 4 bytes - -1? | |||
[[Category:File format]] | |||
[[Category:Gotcha Force]] | |||
Latest revision as of 13:32, 7 October 2023
This article is about Gotcha Force CHD file format and ongoing researches on it.
|
This file format needs a lot of research. Researches on headers / bodies structures has to be done. |
GCD of CHD lengths = 16
CHD files contain several blocks:
0x0 "Head" Header CHD
- 0x4 - 4 bytes uint - Prog block header offset.
- 0x8 - 4 bytes - Quantity?
- 0xC - 4 bytes uint - Total file length.
- 0x10 - 4 bytes - Unknown
- 0x14 - 4 bytes - Unknown
- 0x18 - 4 bytes uint - Smpl block header offset.
- 0x1C - 4 bytes uint - DSPi block header offset.
0x20 "Prog" It could describe audio datas or script.
- 0x24 - 4 bytes uint - data block length.
- 0x28 - 4 bytes - Quantity?
- 0x2C - 4 bytes - -1?
0x0 "Smpl" Samples?
- 0x4 - 4 bytes uint - data block length.
- 0x8 - 4 bytes - Samples count? (In hexadecimal - Ex 0x68 = 104 + 1(0,1,2....104))
- 0xC - 4 bytes - -1?
0x0 "Dspi" DSP for DSPADPCM, idea for further investigations: List of DSP in DPK (Gotcha Force).
- 0x4 - 4 bytes uint - data block length.
- 0x8 - 4 bytes - DSP count? (In hexadecimal)
- 0xC - 4 bytes - -1?