Bay 12 CMV: Difference between revisions
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===Sounds=== | ===Sounds=== | ||
Sound data is present in version 10001 files, but not in 10000 or 10005. | |||
{| style="margin: 1em 1em 1em 0pt; background: #f9f9f9; border: 1px solid #aaa; border-collapse: collapse;" border="1" cellpadding="4" cellspacing="0" | {| style="margin: 1em 1em 1em 0pt; background: #f9f9f9; border: 1px solid #aaa; border-collapse: collapse;" border="1" cellpadding="4" cellspacing="0" | ||
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| SoundCount | | SoundCount | ||
| Number of sound references defined. | | Number of sound references defined. | ||
|- | |- | ||
| char[50] | | char[50]*''SoundCount'' | ||
| SoundName | | SoundName | ||
| Filename (no dir or ext) of an external file which contains the sound data. | | Filename (no dir or ext) of an external file which contains the sound data. | ||
| Line 64: | Line 54: | ||
====Sound timing data==== | ====Sound timing data==== | ||
An array of 3200 (16 channels x 200 frames?) 32-bit signed integers, specifying the | An array of 3200 (16 channels x 200 frames?) 32-bit signed integers, each specifying an index into the array of sound refs defined above. An index of -1 indicates that no new sound is played at that point. | ||
===Frame data=== | ===Frame data=== | ||
Latest revision as of 21:06, 29 April 2011
- Company: Bay 12 Games
- Extension: cmv, ccmv
- Specifications:
- Samples:
- Movies - DF Map Archive (download links for each are in a box on the bottom left)
The CMV file format is used by the game Dwarf Fortress to store intro movies and player recordings.
File structure
Header
| Type | Name | Description |
|---|---|---|
| uint32 | Version | The format version used; should be >= 10000 |
| uint32 | Width | Width (in characters) of each frame |
| uint32 | Height | Height (in characters) of each frame |
| uint32 | DelayRate | How long each frame is displayed; seems to be in hundredths of a second. |
Sounds
Sound data is present in version 10001 files, but not in 10000 or 10005.
| Type | Name | Description |
|---|---|---|
| uint32 | SoundCount | Number of sound references defined. |
| char[50]*SoundCount | SoundName | Filename (no dir or ext) of an external file which contains the sound data. |
Sound timing data
An array of 3200 (16 channels x 200 frames?) 32-bit signed integers, each specifying an index into the array of sound refs defined above. An index of -1 indicates that no new sound is played at that point.
Frame data
Frame data is stored in zlib-compressed chunks containing a maximum of 200 frames:
| Type | Name | Description |
|---|---|---|
| uint32 | z_size | Size of compressed data. |
| bytes | z_data | z_size bytes of compressed data. |
The uncompressed structure of each frame roughly corresponds to a text-mode screen buffer:
| Type | Name | Description |
|---|---|---|
| char[Width*Height] | Characters | An array of characters, encoded in the CP437 character set. |
| char[Width*Height] | Attributes | Encodes the ANSI color codes for each character. |
Note that the encoding of color attributes is nonstandard:
0ibbbfff i - Foreground Intensity Bit bbb - Background Color Bits fff - Foreground Color Bits