OBD:SNDD: Difference between revisions
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*write "WAVE" | *write "WAVE" | ||
*write "fmt " | *write "fmt " | ||
* | *write 50 | ||
*write the wav header | |||
*write "data" | *write "data" | ||
*add the size of the part in the raw file | *add the size of the part in the raw file | ||
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{{OBDtr| 0x08 | char[4] |00FF00| 57 41 56 45 | WAVE | identifier for the "WAVE" format }} | {{OBDtr| 0x08 | char[4] |00FF00| 57 41 56 45 | WAVE | identifier for the "WAVE" format }} | ||
{{OBDtr| 0x0C | char[4] |00FFFF| 66 6D 74 20 | fmt | identifier announcing the following wav format header }} | {{OBDtr| 0x0C | char[4] |00FFFF| 66 6D 74 20 | fmt | identifier announcing the following wav format header }} | ||
{{OBDtr| 0x10 | block[ | {{OBDtr| 0x10 | int32 |FFC8C8| 32 00 00 00 | 50 | wave format header size }} | ||
{{OBDtr| 0x14 | block[50]|FFC8C8| | | [[OBD:SNDD/wav|wav header]] }} | |||
{{OBDtr| 0x46 | char[4] |FFFFC8| 64 61 74 61 | data | identifier announcing the following wav data }} | {{OBDtr| 0x46 | char[4] |FFFFC8| 64 61 74 61 | data | identifier announcing the following wav data }} | ||
{{OBDtr| 0x4A | int32 |C8FFC8| 56 28 00 00 | 10326 | size of the following wav data in bytes (<nowiki>=</nowiki> size of the .raw part) }} | {{OBDtr| 0x4A | int32 |C8FFC8| 56 28 00 00 | 10326 | size of the following wav data in bytes (<nowiki>=</nowiki> size of the .raw part) }} | ||
Revision as of 10:10, 9 July 2009
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dat
There are 2 different formats used by the SNDD files.
PC retail
Below is the dat file part used in the PC retail version.
| Offset | Type | Raw Hex | Value | Description |
|---|---|---|---|---|
| 0x00 | res_id | 01 D7 08 00 | 2263 | 02263-comguy_dth2.aif.SNDD |
| 0x04 | lev_id | 01 00 00 06 | 3 | level 3 |
| 0x08 | int32 | 08 00 00 00 | 8 | flags
|
| 0x08 | block[50] | wav header | ||
| 0x3E | int16 | 37 00 | 55 | duration in 1/60 seconds |
| 0x40 | int32 | 56 28 00 00 | 10326 | size of the part in the raw file in bytes |
| 0x44 | offset | 20 10 59 00 | 00 59 10 20 | at this position starts the part in the raw file |
| 0x48 | char[24] | AD DE | dead | unused |
PC demo and Mac
The Mac version and the PC demo version use a simpler format. It appears that there is no support for different sample rates (all sounds are sampled at 22050 Hz).
| Offset | Type | Raw Hex | Value | Description |
|---|---|---|---|---|
| 0x00 | res_id | 01 D6 08 00 | 2262 | 02262-comguy_dth2.aif.SNDD |
| 0x04 | lev_id | 01 00 00 06 | 3 | level 3 |
| 0x08 | int32 | 01 00 00 00 | 1 | "number of channels" (can be 1 for 1 channel or 3 for 2 channels) |
| 0x0C | int32 | 37 00 00 00 | 55 | duration in 1/60 seconds |
| 0x10 | int32 | 5E 2A 00 00 | 10846 | size of the part in the raw file in bytes |
| 0x14 | offset | 00 B1 01 00 | 00 01 B1 00 | at this position starts the part in the raw file |
| 0x18 | char[8] | AD DE | dead | unused |
raw
The raw data part of a SNDD file contains the actual audio samples without any other headers.
export and import
To create a wav/aif file one needs to write a file header like below and then write the contents of the raw data part.
WAV files
- Write "RIFF"
- add the size of the part in the raw file + 70 bytes
- write "WAVE"
- write "fmt "
- write 50
- write the wav header
- write "data"
- add the size of the part in the raw file
- add the raw file data
- save it as a wav file.
| Offset | Type | Raw Hex | Value | Description |
|---|---|---|---|---|
| Complete ADPCM wav format header (black outline) | ||||
| 0x00 | char[4] | 52 49 46 46 | RIFF | identifier for the "IBM/Microsoft RIFF" standard |
| 0x04 | int32 | 9C 28 00 00 | 10396 | size of the file from 0x08 to the end (= size of the .raw part + 70 bytes) |
| 0x08 | char[4] | 57 41 56 45 | WAVE | identifier for the "WAVE" format |
| 0x0C | char[4] | 66 6D 74 20 | fmt | identifier announcing the following wav format header |
| 0x10 | int32 | 32 00 00 00 | 50 | wave format header size |
| 0x14 | block[50] | wav header | ||
| 0x46 | char[4] | 64 61 74 61 | data | identifier announcing the following wav data |
| 0x4A | int32 | 56 28 00 00 | 10326 | size of the following wav data in bytes (= size of the .raw part) |
AIF files
- Write "FORM"
- add the size of the part in the raw file + 50 bytes
- write "AIFC"
- write "COMM "
- add the aif header + calculate its sample rate (always 22)
- write "SSND"
- add the size of the part in the raw file + 8 bytes
- add 8 zero bytes
- add the raw file data and save it as an aif file.
Note the Big Endian order
| Offset | Type | Raw Hex | Value | Description |
|---|---|---|---|---|
| Complete aif format header (black outline) | ||||
| 0x00 | char[4] | 46 4F 52 4D | FORM | identifier for the "EA IFF 85" standard |
| 0x04 | int32 | 00 00 2A 90 | 10896 | size of the file from 0x08 to the end (= size of the .raw part + 50 bytes) |
| 0x08 | char[4] | 41 49 46 43 | AIFC | identifier for the "AIFC" format (compressed aif file) |
| 0x0C | char[4] | 43 4F 4D 4D | COMM | identifier announcing the following aif format header |
| 0x10 | block[26] | aif header | ||
| 0x2A | char[4] | 53 53 4E 44 | SSND | identifier announcing the following aif data |
| 0x2E | int32 | 00 00 2A 66 | 10854 | size of the file from 0x32 to the end (= size of the .raw part + 8 bytes) |
| 0x32 | int32 | 00 00 00 00 | 0 | offset; determines where the first sample in the data starts; in Oni it's always zero |
| 0x36 | int32 | 00 00 00 00 | 0 | block size; used in conjunction with offset for block-aligning data; in Oni it's always zero |
| ONI BINARY DATA |
|---|
| QTNA << Other file types >> StNA |
| SNDD : Sound Data |
| Generic file |